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Questions tagged [shock]

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4
votes
1answer
453 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 ...
0
votes
1answer
56 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 ...
0
votes
2answers
144 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 ...
1
vote
0answers
65 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 ...
0
votes
2answers
56 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 ...
1
vote
2answers
127 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 ...
0
votes
6answers
397 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 ...
54
votes
6answers
17k views

Why am I not dead after repeatedly touching a high-voltage source?

While playing with mosquito racket in my home, I unscrewed the racket and touched the 2 wires with my hands. I felt that my bones were dislocated, I got shocked, but I am not dead. My calculations ...
0
votes
0answers
146 views

Getting electric shocks from any plugged in adaper/charger/wire in my house - Grounding outlet or something else?

I've recently moved to a new house and every time I plugin something (PC charger, phone charger, VGA screen cable..) just about any type of wires to an electric outlet, when I touch it, it ...
0
votes
3answers
639 views

Whats the minimum voltage and current to feel stimulation on skin?

What I'm trying to ask is what voltage and current is necessary in order for it to be felt on the skin when touching an electrode? And is AC of DC better for this job? I know it depends on the ...
0
votes
1answer
196 views

Can daily 90VAC shocks have effect on human body? [closed]

There is external audio card on my desk with gold plated ports. For several years, whenever I accidently touch these with my elbow I would get a little shock, sometimes I would touch the PC case with ...
0
votes
0answers
57 views

Shock From HDMI Plugged Into TV [duplicate]

I recently bought a new TV and I noticed that when I touch the end of the HDMI cable I get a shock even when the TV is off (this also happens with the VGA -> Mini DP cable). I can only feel the shock ...
2
votes
3answers
443 views

How can a device like the ETP BD-10A pass electrical safety testing?

http://www.electrotechnicproducts.com/vacuum-leak-and-holiday-detectors/?sort=bestselling The device produces output exceeding 55kV in short pulses. The current while claimed to be low by the ...
0
votes
1answer
678 views

Is it safe to touch 1000 Volts DC at 1 mA of constant current? 0.1 mA? 0.01 mA?

I would like to study the phenomenon where thousands of volts are safe to touch. Generators like Tesla coil and static electricity generators generate discontinuous sparks, which is why they are safe ...
-1
votes
1answer
463 views

Is it normal for an RCA cable to carry a perceptible (to a person) current? [closed]

Recently when disconnecting an RCA cable from a computer I was surprised to receive a shock from the male connector at the end of the cable. The other end of the cable was plugged into a stereo, ...
12
votes
3answers
527 views

Electrocuting a fruit fly using magnetic induction

We are electrically inducing heart attacks in fruit flies to test the effects of various treatments on survival. We are shooting for roughly a 50% survival recovery rate in our control group. I work ...
0
votes
0answers
210 views

Electric current felt over the case occasionally!

We have made one vacuum former for dental medical usage. In testing, the operator reported: 1-Electric current felt over the case of the device occasionally! 2-hanging in some routines ...
0
votes
2answers
196 views

Do DC Power Jacks need waterproofing?

I plan to use a pair 5.5x2.1mm DC Power Jack as shown below to connect a battery pack to a DC motor that will drive an electric tricycle. Occasionally it may rain while the tricycle may be in use and ...
0
votes
1answer
183 views

ad8232 needs a proteccion circuit? Can this obtain valid diagnoses? [closed]

I´m working with the Sparkfun kit based on AD8232 for acquiring the ECG signal and using arduino nano for data acquisition I read that there may be an accident in which the alternating current passes ...
0
votes
1answer
155 views

most resistant substrate layer to embed a specific wire

I am in process of embedding a wire in a choice of substrates. I would apply voltage so much as to heat it (the wire) to 220 degree Celsius max. What are the best choice of substrates I can use so ...
0
votes
1answer
181 views

in some places when we are working with cables at home we get shock and therefore we are thrown away

In some places when we are working with cables at home we get shock and therefore we are thrown away.. but in some places like Asia when you get a shock you are stuck with the cable until someone ...
0
votes
2answers
383 views

Connect PC chassis to the ground of TV coax cable?

I'm living in a house with electrical system without Ground wire and when I touch my PC case while standing on ground I get a zap from it which I believed are from suppression capacitor in PSU, I've ...
3
votes
2answers
1k views

What can shock you in an unplugged electronic device?

I'm trying to do maintenance on my stereo system and I know that capacitors will hold an electrical charge, but is there anything else that could shock me? I'm not sure this is the right place to ask ...
2
votes
2answers
239 views

Risks of using device body as heat sink for IGBT and Bridge rectifier

I want to know is any risk factor (electrical shocking or ... ) for using one aluminum (4mm) device body which is used as heat-sink for IGBT and Bridge rectifier that are working with 220 volt power? ...
0
votes
2answers
133 views

Confusion with RCD principle of operation

I understand that an RCD is a device that interrupts an ac circuit (usually in outlets) if current between live and neutral/ground is not the same, indicating something is wrong with the circuit. It ...
19
votes
6answers
8k views

How did I survive this shock? [duplicate]

When I was about 10 years old playing with lamps, I accidentally picked up a wire completing a circuit for a lamp plugged into the wall (120 V AC U.S. standard). I'm not sure if it was the hot or ...
4
votes
1answer
1k views

Why do you get shocked touching a live wire?

A number of times (over many years) I've accidentally touched a live AC mains wire (120V, 60Hz) while working on home wiring. The feeling is always similar: uncomfortable tingling feeling at the ...
2
votes
2answers
281 views

When we use Earthing and Bonding?

I read in some articles the difference between the earthing and bounding. But i still don't understand when we use bonding. I think Earthing is the more important part to grounding and protect from ...
2
votes
1answer
148 views

Why does one person get shocked?

I have a small snow machine that I purchased. It comes in a wooden box with metal, I assume aluminum or maybe stainless steel, trim around it. It connects directly to a standard 110vac power. ...
2
votes
0answers
211 views

How in the world does this prank pen work? [duplicate]

Help here would be greatly appreciated: This question has been asked several times on this site and elsewhere, and it seems as if the posters became satisfied with inaccurate answers. How on earth do ...
0
votes
2answers
2k views

Why am I getting electric shock from 12V DC Adapter

May be this is a weird question. But I am little curios to know why my 12V DC adapter is giving shock when the circuit is complete. I purchased couple of these 1 AMP 200V AC to 12V DC adapter. ...
-4
votes
1answer
105 views

220v ac to 12v dc with capacitive reactance geting shock [closed]

can any one tell me if I use capacitive reactance to drop voltage from 220v ac to 12v and then use bridge rectifier to get polarity, now output from the bridge rectifier can shock me with respect to ...
2
votes
4answers
658 views

How can I test a wire for small holes?

I have stripped one wire, the black/hot/positive one, for a 120v appliance. I had to cut away the outer plastic that surrouneds all three wires, and now I'm afraid I may have nicked a small hole into ...
1
vote
3answers
149 views

Contradictions in conductivity

I mostly know how electricity flows but cannot understand some aspects, and have three examples that I cannot fathom: The pilot lighting electrode wire on my house central heating water heater /...
4
votes
4answers
7k views

Why does isolation transformer protect from shock?

Perhaps I can best explain the question with two examples: (1) there is PC powered directly from 230V mains (unprotected by RCD or similar), and there is fault in PC that causes line voltage to ...
1
vote
3answers
269 views

Could a 220 V wire shock me if I hold a 4 band Orange Red Orange Violet resistor in series?

A noob level question and I am afraid of electric current since childhood shock. So a wire goes into wall socket, 200v input. If I hold a resistor of 32 Kilo-Ohm and touch wire with it's other hand ...
-5
votes
1answer
374 views

is a 555 timer flyback driver lethal?

i have always heard on websites that the 555 timer flyback driver is not lethal. i know that the common ZVS driver is lethal but would the 555 flyback driver be able to deliver a deliver a lethal ...
0
votes
2answers
484 views

Can touching connections between each WS2812B-LED result in a shock [duplicate]

WS2812B LED-strips are ran at 5V, and can consume up to 60mA per LED. This can quickly add up to a few amperes. Would I receive a chock if I'd touch the ...
39
votes
8answers
66k views

Can a 12V battery give you a shock or not?

I am reading a book called "Make: Electronics" and, on page 9, it says: "Anyone who has dropped an adjustable wrench across the bare terminals of a car battery will tell you that short circuits can ...
1
vote
1answer
2k views

Minor electric shocks from touching appliances, loose ground? [closed]

I get minor electric shocks when handling everyday home appliances barefoot. These appliances include laptop when the charger is connected and fridge etc. Can the reason for this be loose ground ...
0
votes
1answer
597 views

How does an electronic shocker works?

I'm new to electronics but I want to make this diagram from "Instructables" : I have everything I need from a camera... I also realized, using a different transformer, that the sparks are made only ...
0
votes
1answer
130 views

Imagine this scenario? Would the person feel anything or be injured? [duplicate]

Imagine an individual touched a high voltage line (like a bird) without touching any ground. For sake of illustration, imagine that this high voltage line was at a 100 Exavolt potential. Would the ...
-4
votes
2answers
616 views

When does a human body get shocked by electricity [closed]

Today I touched the live phase of the electrical line of my house wearing rubber shoes. However, I still got an electric shock As I wore rubber shoes it seems to me that I shouldn't be get shocked. ...
-1
votes
1answer
352 views

Who is responsible for Electrical shocks, high current or high voltage? [duplicate]

An electrical shock may cause burns, or it may leave no visible mark on the skin. In either case, an electrical current or voltage passing through the body can cause internal damage, cardiac arrest or ...
1
vote
1answer
286 views

How did I manage to not be hurt after accidentally making an electric contact between mains wires?

Warning: mains is dangerous, often fatal and should not be messed with. I accidentally touched both live and neutral of a 230 AC mains via dupont wires after a shower (still wet feet). However I ...
0
votes
2answers
274 views

Circuit for measuring static charge

I want a cheap tool for investigating the source of and solutions for static electric shocks (from a vehicle). This link shows a particularly attractive solution; just a FET, LED, resistor and ...
10
votes
3answers
5k views

Avoiding static shocks from vehicles

I don't entirely understand static electricity; particularly how it seems to flow through rubber shoes and paint, but seemingly not rubber tyres or car seats. I am tired of getting shocks from my van....
5
votes
1answer
393 views

grounding a mailbox - isn't it already grounded?

I live right next to some suspended power lines. My mailbox is very close to them, and anytime I touch the mailbox, I get a mild shock. It seems to me I need to do something to ground the mailbox but.....
4
votes
1answer
220 views

Electric shock with isolated material in the circuit

I never understand why electric shock happens if I'm connecting to ground by isolated material. Let's consider an example with monophase 220V electrical system electrical shock while I'm wearing ...