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Rabu, 07 April 2021

Which One Is Killing You ? The Amps Or The Voltages ?


 WARNING - DANGEROUS !!

DO NOT TRY TO IMITATE THE EXPERIMENTS WITHOUT SUPERVISION


Indeed, the conflict about which one kills you when electrocuted, whether the current or the voltage, becomes eternal like the story of which came first chicken or the egg ? ... If you think about it, imagine: when the heat and electricity must kill you, it doesn't matter which part  led you straight into seeing heaven, but more importantly, why did you get electrocuted? For a Youtube scientist like Mehdi, this must be proven in theory and also in practical. Anyway, it will stung and then burned a little bit of his skin, but for the sake of science it still has to be proven.


When one power supply then the electrode is shorted, the maximum current will flow with the voltage close to zero. This is in accordance with OHM's electric law where current is inversely proportional to voltage (V = I x R). And don't be surprised if the result is that the connector will cause heat when shorted, as shown above.




In fact, this is also the principle of electric welding and miraculously, even though the connector is held in hand, we are protected from being electrocuted due to a short circuit in the voltage that produces the spark. This is because the current flows completely through the connector while the body of the byte has a greater resistance so it does not feel it (although there is also a little flow)


Because it doesn't feel anything when the naked cable held by the hands, let's try to use more wet part of the body like tongue, which has a lower resistance. But remember ! Don't trust 100% to the 7 segment screen on the power supply, Mehdi saw the display 1 volt, but in fact it's actually measured at 11 volts. It finally knocked him over! But if it is real 1 volt and proven by a voltmeter (so it is more valid)  then 1 volt is safe ... (at least save for  Mehdi who is a strong man, not for me who always afraid of being electrocuted!)



So based on the ohms law, with a voltage source of 1 volt and a body resistance of 10,000 ohms, the current flowing in the body is 0.1 milliamp. So that if you want to flow 1 Ampere of current to the body, a voltage of 10,000 volts is needed. This is the reciprocal relationship between current and voltage, that is, current will not flow without a difference in voltage between the two points. Likewise, if there is no current flowing in a conductor, then the voltage will not be present either.


Voltage and current both can kill, like the analogy of events an earthquake that occurs far in the ocean, you will not feel the vibration, but the aftermath is, the Tsunami can kill you.




The dangerous cooperation between current and voltage can also kill you as in the above experiment, where the supply voltage is set to 4 volts and then passed over a thin wire and there is heat followed by fire. Fires can also cause disasters that are no less frightening.




So the conclusion is no longer saying that electric current kills more than electric voltage. Vice versa, they are partners in crime!


ONCE AGAIN DON'T TRY ANYTHING I WRITE ABOVE!

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