Questions tagged [shock]

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2 votes
2 answers
143 views

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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-4 votes
2 answers
100 views

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 ...
0 votes
1 answer
98 views

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-...
0 votes
1 answer
90 views

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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0 votes
3 answers
2k views

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 ...
0 votes
1 answer
94 views

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 ...
0 votes
1 answer
146 views

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/...
-8 votes
4 answers
195 views

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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0 votes
1 answer
98 views

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, ...
0 votes
1 answer
83 views

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 ...
0 votes
1 answer
63 views

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 ...
1 vote
2 answers
1k views

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 ...
0 votes
0 answers
41 views

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 ...
0 votes
1 answer
129 views

Measuring 240V on earth wire

One of our breakers was tripping every few minutes (which powers an air-pump and a few 12V solenoid valves.) I went to measure the voltages and everything seemed fine. As I went over and touched the ...
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0 votes
0 answers
129 views

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 ...
15 votes
4 answers
4k views

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 ...
1 vote
1 answer
431 views

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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0 votes
1 answer
104 views

How to measure if there is current between point A and B when source and grounding is unknown

I understand the headline makes little sense, so here is a clarification on what's going on. I used thick steel rods to create a second floor (loft) in my apartment. Those steel rods are attached via ...
0 votes
2 answers
63 views

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 ...
4 votes
3 answers
486 views

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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2 votes
1 answer
427 views

Why would touching a rubber insulated spark plug wire causes current to go through your finger?

I'm trying to understand the physics. The spark plug has a gap of 0.9mm. Why would the current go through the insulation resistance, the finger resistance and the air gap between the finger and the ...
0 votes
3 answers
132 views

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 ...
2 votes
3 answers
925 views

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 ...
0 votes
1 answer
4k views

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 ...
1 vote
3 answers
174 views

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 ...
13 votes
11 answers
9k views

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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0 votes
1 answer
106 views

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=...
0 votes
1 answer
102 views

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 ...
0 votes
1 answer
644 views

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 ...
2 votes
2 answers
1k views

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 ...
0 votes
2 answers
86 views

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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0 votes
0 answers
86 views

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 ...
1 vote
2 answers
2k views

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 ...
8 votes
3 answers
5k views

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 ...
1 vote
0 answers
178 views

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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1 vote
3 answers
699 views

Understanding Electric Shock Box Circuit

I have just bought an Electric Shock Box Kit. I am trying to understand how the circuit works, so by doing reverse engineering I obtain the next circuit: I don't understand how is generated the ...
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0 votes
2 answers
242 views

What causes a thorn like feeling when your put your hand in water in electronic appliances?

I live in India, the voltage supply in houses is 220V. Sometimes, for example in my washing machine, when it is full of water and I put my hand in it, I get a feeling like a thorn/tiny nail is ...
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0 votes
1 answer
85 views

Static electricity when touching any metal after power down

I have a PC connected to a couple of devices via a serial port. The item labelled "COM" is a simple manual serial port switcher that requires no power. The item labelled "Rad" is a radio module ...
2 votes
2 answers
100 views

Live wire and ground question

I am trying to fully understand the danger of AC voltage but still I have some questions... I understand that human body has a capacitance that facilitates AC current penetration. I also understand ...
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0 votes
1 answer
371 views

Current flow though Pin of ups [closed]

I forgot to plug in my computer's ups(uninterruptible power supply) pin in socket.UPS was turned on.I accidentally touched the neutral pin.I got a electric shock.Why?
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2 votes
2 answers
106 views

Are large pulsed currents the most deadly type of electric shock?

As opposed to sustained electric shock via DC or AC? I might be wrong, but when people are killed by electrocution it is usually due to a large current of very short duration passing through their ...
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0 votes
2 answers
322 views

Any trick to use the ground pin? [closed]

I have bought a new charger for my laptop. The case of my laptop is made of steel and so it sometimes give electric shock as I don't have a ground wire in my house. And, I currently don't have any ...
0 votes
2 answers
197 views

Can you receive a shock by touching only one probe ?

in this video at 4min 4sec https://youtu.be/CkGVMWK10qU?t=243 The guy receive a shock of a taser by touching a metal object that touches one probe, but why does the arc goes through his body ? I know ...
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4 votes
1 answer
2k views

Electric shock from outdoor security cameras

I just bought this outdoor security camera kit from Amazon. (Amazon product link) When wiring it up, I noticed that I got a small sharp shock when touching the small screws on the metal casing ...
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0 votes
2 answers
4k views

Is the voltage supplied by an LCD backlight inverter in a laptop dangerous in any way?

It is my understanding that in a laptop, voltage from a low voltage (say 10V) battery can be converted into higher much higher voltages by way of inverter for an LCD display module. Is this voltage ...
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0 votes
2 answers
363 views

Using a microcontroller to produce a shock

I am currently working on a project for school and we are creating a mock pavlock although much simpler. We basically want a microcontroller to be able to keep time and shock at specific times. We ...
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1 vote
0 answers
95 views

Electronics at high acceleration

I would like to meaure g-force (100 - 4000 g) within a centrifuge (I know it sounds silly because it can be calculated but it is more of a learning thing). I thought of a 3d printed enclosure housing ...
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0 votes
2 answers
91 views

How long would the capacitors in an iPhone power adaptor hold potential energy?

I was curious as to whether one could potentially get a shock after touching, with sweaty hands, the prongs of an IPhone power adapter upon unplugging it. If possible, how long would this charge take ...
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1 vote
2 answers
8k views

Protecting yourself with latex gloves

Would wearing white latex gloves(doctor gloves) protects you from getting shocked when repairing electronics? And is there a reason why you seldom see anyone wearing gloves when dealing with ...
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1 vote
6 answers
3k views

Why am I getting shocked from "hot" line and touching "ground" (Earth)

So I live in an EU country and don't have Earth grounding for my house. Still I am getting shocked when touching "hot" line (220VAC) and standing on "ground" (Earth). How is this possible? From my ...