All Questions
Tagged with electricity electric-current
790
questions
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Why is it written 'High voltage' in danger boards if current is the one which actually causes the shock?
After reading the answers given to this question I could understand that the amount of shock is dependent on the current and not majorly on the voltage even-though in some cases it depends.
But, in ...
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How can the copper wire in an electricity generator provide an infinite number of electrons? [closed]
How can copper wire in an electricity generator produce an infinite number of electrons when the is a finite number orbiting each copper nucleus?
-3
votes
1
answer
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Dependent and Independent Variables in an Electrical Experiment [closed]
So, for my science fair I had to test the gauge of a copper wire vs electrical resistance. What I did was I set up a series circuit involving a 6v battery, a light bulb, a multimeter, and a voltmeter. ...
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How electricity works acutally?
I've been told that electricity is due to flow of charges(-ve charge=electron) that are provided by the battery. And no. of charges that leave battery at one end are equal to no. of charges that re-...
-3
votes
1
answer
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Does AC-current reverse direction only in the main circuit (the powerplant-to-powerplant circuit)?
I'm trying to "see" electrical-energy transfer, at every viewing elevation (from the femto-scopic level to the macro-scopic level), all the way from the power-plant to the application.
The question ...
-3
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2
answers
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What happens (from the first principle perspective) when you connect 2 negative terminals in a DC Circuit? [closed]
E is the electromotive force, r is the internal resistance.
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1
answer
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Amount of 2 amperage [closed]
I have 2 equation describing the alternating amperage $I_1$ and $I_2$. I need to get amount of these amperages.
My equations:
$$I_1=10\sin(\omega t+30)$$
$$I_2=20\sin(\omega t-50)$$
How can i make ...
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3
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Doesn't any massive conductor look like "ground" to an AC supply?
I've been puzzling over this excellent answer to the perennial "Why don't I get shocked by a hot wire if I'm not grounded?" question. The orders of magnitude just don't seem right for two reasons:
...
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2
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Is the current in a resistor different from that in a circuit? [duplicate]
My understanding is that since Current = Charges/Time. If there exists a resistance to the flow of charges, then that must mean the charges slow down, meaning that more time is required to pass ...
-5
votes
1
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A wall-outlet's hot-slot pulses energy in only ONE direction...toward the ground. How can this be considered ALTERNATING?
I'm trying to "see" electrical-energy transfer, at every viewing elevation (from the femto-scopic level to the macro-scopic level), all the way from the power plant (through the application) to the ...