Questions tagged [shock]
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104 questions
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If AC is alternating (+120v) - (-120v) then why we don't get shock by touching neutral wire
If AC is alternating the current between phase and neutral then why we don't get shock by touching neutral wire?
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Will I die or get a decent shock using an inverter?
I want to know if I can get shocked if I have the following setup?
From my understanding, because the inverter (let's say a small 300W) is considered a "standalone" AC source and not ...
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24 VDC system and metal ground
I've built a rubber tracked mobile robot and it has a metal chassis.
I use a 24 VDC 30 Ah battery to power a system which includes two DC motors, motor controllers, an industrial PC and some sensors.
...
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Floating output voltage in USB chargers?
A USB charger is usually galvanically isolated from mains for safety reasons.
If I touch the output connector while standing on the ground (i am at earth potential), will I get a shock? I think yes, ...
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How to create an electric fence for slugs and snails using a car battery
There are electric fences that are made using a regular 9v alkaline battery and two wires. One wire connects to the positive terminal, the other wire to the negative, and they are wrapped around the ...
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Why do I get shocked from my laptop? How do I stop it in my own designs? [duplicate]
Recently, I noticed my MacBook gave me a small shock when it was plugged in and I only touched the very corner of it with my palm. It was fine if I gave it enough contact by resting both palms on the ...
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Inrush current limiter thermistor acting up
One of the power amps I am working on uses a thermistor for inrush current limiting (SL15 25003) as shown in the schematic below (ICL1). When I was testing the unit it seemed to me that there was some ...
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Do we really need the metallic chassis to be grounded if it is coated with a non-conductive paint?
As per my understanding, a metallic chassis can result in a shock only if two failures happen simultaneously:
Live wire ('hot') insulation wears off and gets in contact with chassis.
Chassis outer ...
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Are GX ("aviation") connectors unsafe for high voltages?
GX connectors (unofficially called "aviation") are used for a wide variety electrical applications, including supplying power to soldering irons and motors. Usually, the voltages are low, ...
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How do I make a small shock circuit to incorporate in my artwork?
Essentially, I am making a sensory art piece involving many different materials that all feel different to touch. I want to incorporate a small section of metal that will deliver a small, ...
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Electric Shock off spinning motor
This large blower powering an inflatable structure has no on/off switch, requiring the actual power plug to be disconnected to power down the item. I frequently get a painful shock off the plug, and ...
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What does it take for 220V AC to shock you?
After heavy rains, we had severe water logging in our lawn and front yard.
My brother got an AC submersible pump from the market, small thing (sits on the palm of my hand), not great flow rates (maybe ...
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As in the picture when I connect the gnd of hlw8012 to the gnd of esp8266 I get electric shock .what should I do now
I'm working on a project based on Iot so I was using hlw8012 for power monitoring and after connecting the IC module to the esp8266 whenever I touch the Esp module I get electric shock . What should I ...
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How to fix the shock I was getting from my 3D printer?
Our house do not have proper grounding, only hot and neutral wires are present. Now, every time I touch the chassis of my 3D printer it shocks me.
I tested the ac voltage between the chassis and the ...
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"buzzing" sensation from a touch dimmer when touched with wet hand
My house has the above touch dimmers from the late 70's or 80's. They usually give off an imperceptible buzz or no sensation when used.
Today I unthinkingly touched one with a wet hand and felt a ...
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Electric shock detector
I am a software engineer and totally new in electric field so that this question may be silly.
Can we develop a device that would turn on an LED on or make sound when the holding person gets shocked ...
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Would I typically get a shock from touching two live wires separated by ~240 V with each hand if my skin were completely dry (assume I'm ungrounded)?
As the question asks, would I? I'm aware that one should naturally never actually try this, and that people for the most part do get shocked when accidentally doing this, but why exactly is that? I ...
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Is there a circuit that I can build to allow this alarm device to operate a relay?
I would like to add a relay output circuit to this alarm device to allow it to operate my car horn.
The alarm device has 4 different tunes/tones. Each tone plays for about 5 seconds and the next 3 ...
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Will I feel a shock using this circuit?
I'm a programmer and new to electronics.
I am trying to achieve at least slightly shocking my finger using this circuit and want to make sure it works before buying the stuff. It will be a punishment ...
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What causes a person to get 'blown across' the room in an electric shock?
Recently I came across this article of a man being 'catapulted' across the room: https://news.sky.com/story/desperate-man-was-dead-for-two-minutes-after-being-electrocuted-while-stealing-scrap-to-pay-...
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Large series resistor to protect from shock
I built a high voltage generator and want to protect myself against shocks.
Would putting a large series resistor on the powering circuit be sufficient to protect me in those cases:
I build a large ...
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Can you touch a live wire without being shocked?
I understand many questions about electric shock from live wires and I apologise for adding to that list but after reading many of them I still have my concerns.
From what I have read from some of ...
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Electricity to ground
I was working on a games console and accidently got shocked by a capacitor.
I was wearing a ESD strap that was connected to the back of my pc which is connected to a powerboard and to a grounded power ...
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I got a shock from a metal switch powering mains
I've been working on an Arduino project which controls the temp of a crock pot and I wanted to incorporate this cool looking illuminated metal toggle switch. https://www.alibaba.com/product-detail/...
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What is the minimum voltage to shock someone? Is a transformer needed or can I use a battery?
What is the minimum voltage to shock someone (on the arm, leg, or finger, not on the tongue). Could this be achieved with just a battery and without a transformer? Is shocking someone just a matter of ...
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Is it the current that kills, or other factors? [duplicate]
Recently I got into an argument with my physics teacher over a simple subject, with this question - "What kills you, the current or the voltage?". I argue that it is the voltage that kills, ...
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Risk of getting shocked by ECG leads? [closed]
I have recently come into possession of a GE patient monitor (Eagle 4000) which looks structurally sound, probably decommissioned because of its age. It seems to work without a hiccup but I remembered ...
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How can I get a full guide to choosing the right IC package?
I often find a variety of IC packages options for one chip.
I select among them randomly according to the availability, despite my concern about the vibration and shock reliability
I googled ...
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Is it wattage that kills you and not specifically amps
First of all the actual amounts needed to kill and the body resistance is not important for this scenario.
Let's say we are working with dc.
Let's say that 100ma is enough to kill across the chest ...
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SMPS isolation and earthling shock [duplicate]
I have a laptop, which comes with an SMPS charger. The laptop charger is a very common type. I know there are some earthing issues in my home. I need to fix that. But SMPS isolate mains from the ...
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Electric shock when touching insulated plug
Something weird happened.
My girlfriend tried to unplug our dryer from the wall outlet. We live in Germany.
She touched the plug on the insulation (like normal) and did not touch the pins, but still ...
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Is ground connection in home electrical system really necessary?
I know that the answer to my question is "Yes, it is!". The ground connection is needed to avoid a person touching a metallic part of faulty equipment to be electrically shocked. So the ...
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Why did a hot/neutral reverse lead to an HDMI cable shocking me?
I recently set up a new TV/home theater system for my dad. The TV had 3 HDMI devices plugged into it. I plugged a 4th HDMI cable into the TV, and as I reached for the opposite end of the cable with ...
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Which parts of an AC relay does the electrical current flow on?
Below is a common relay that is used in Arduino projects. When the AC lines are connected, if I touch the screws that holds the AC lines (marked as "1" in the image) do I get an electric ...
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Electric shock - remedy an option? [closed]
Simultaneously touching my dishwasher (i.e. the aluminum coating on the inside) and my kitchen sink just gave me a rather unpleasant electric shock. Measuring the potential showed around 110v between ...
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Would a person receive a shock/risk death if they completed two ends of a neutral wire?
I know this seems like a silly question but I'm trying to make sure I understand the neutral wire. So I know if someone touched a neutral wire (assuming everything is wired 100% correctly) carrying ...
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Electric shock from laptop [closed]
This is something that happened recently.
I was casually using my laptop with the laptop placed on a table, charging and my feet on the marble floor below. Only one of my feet was in contact with the ...
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HDMI cable sparks and shocked me [closed]
I just owned a desktop PC and as display I connected my TV through HDMI cable.
Today I changed the HDMI cable to one that can handle 4K resolutions. So I disconnected the old HDMI cable and then with ...
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Small shock from mains
Okay so I was replacing some sockets the other day and accidentally got a small shock (for some reason one upstairs socket was not connected to the upstairs sockets breaker...)
Anyway I only felt a ...
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Should I ground my body when working with 200V+?
I was working on a project converting 220V AC to 5V DC and I accidentally touched the underside of the transformer which gave me a big shock and I was wondering if it's a good idea to ground my self ...
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Electrifying a cage for rodent problem [closed]
I have a rodent problem which traditional traps and various other measures have have not been able to solve. I want to try to electrify a metal cage which I have. I don't believe that is as simple as ...
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A quetion about how an electric shock game works
can someone explain to me why does the current pass through his hands? why doesn't it pass only through the aluminum since electricity always chooses the easiest path?
https://www.youtube.com/watch?v=...
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Electric shock from cover of preamplifier
I'm using a Focusrite Scarlett as a preamplifier between my computer and amplifier. The preamp gets power only through a USB connection. Sometimes when I touch the cover of the preamp, I can hear a ...
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Why more voltage after full rectification
I used 105j 400 V capacitor. Connected it to 230 V AC. Then I measured voltage after capacitor and it was reduced to 116 V AC.
Then I checked voltage after 4 diode rectification, here measured 204 V ...
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Is it normal to feel shocks on corner of laptop?
When working on my laptop connected to power and lightly touching the right corner with my forearm, I can feel small shocks which are uncomfortable, almost painful. Is this normal?
It happens under ...
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RCA shocking myste [closed]
I got a zap from the shield of a RCA cable from my TV to DVD player(both TV and DVD do not have a ground terminal on the outlet plug).
I measured the metal case to ground and I got a reading of 50V. ...
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Skin effect at high voltage
I recently made a slayer exciter circuit in order to determine the resonant frequency of my secondary coil of my yet to build SSTC.
When running the slayer exciter at 40V DC the circuit consumes ...
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Can you die when your plugged-in mobile phone falls in the bathtub? [closed]
I have questions related to the safety of using mobile devices in the bathtub. I always thought the danger in dropping it or getting water on it is mostly to the device, not to the person, but a ...
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Feeling a tingling sensation by touching stuff, Is this safe?
I'm putting on my desktop computer on steel rack as usual. A while ago, when I touch the steel rack for seconds, practically I feel a tingling sensation, sort of electrical shock in my finders. After ...
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Simulation of an Electric Shock Box
This is the continuity of this: Understanding Electric Shock Box Circuit
I really don't understand what is going on, so I was hoping that simulating the circuit in Proteus might help
What parameters ...
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