Questions tagged [electricity]

The study of the presence and flow of electric charge. Charges, currents, fields, potentials.

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3answers
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Field due to internal Induced charge on a conductor to an external point?

A charge q is located at a distance r from the center of a conducting sphere with inner radius 2r. The charge induces charges on the inner surface of the sphere according to Gauss' law . The electric ...
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3answers
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How feasible is it to power your home with a bicycle? [closed]

This article claims "60 Minutes On This Bicycle Can Power Your Home For 24 Hours!" How feasible is this claim? Sounds great - but the skeptic in me says "yeah, right." Hope this is an acceptable ...
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2answers
47 views

Electron-Current Relationship

I have a rather simple conceptual question that I cannot seem to find a straightforward answer to online. My question is "Does increasing the amount of electrons or increasing the speed of the ...
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1answer
54 views

If I, being in the jump, touch the socket terminal with 220 potential relative to ground it will not hurt me?

If a person jumps and then touches an electrical outlet's hot terminal at $220 \, \mathrm{V} ,$ would it cause them harm? Would any current flow through them? If a person on the 11th floor of a tall ...
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1answer
50 views

Would current flow through a 0 Ohm wire?

In order for current to flow (from say 12V to 0V) it needs to lose all of its energy (voltage). Resistance is what causes it to lose its energy, so if there was no resistance would there be any way ...
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4answers
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How can we know that a particular charge is positive or negative?

Suppose I am provided with a positive is charged....and someone tells me to find which type of charge is present in it? Then how can we detect that the body is positively or negatively charged? Is ...
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1answer
357 views

traditional transformer design improvement [closed]

The traditional tranformers suffer a lot of losses in various forms, some of them are as follows : 1. Flux leakage 2. Eddy currents 3. Hysteresis Figure : But as we are taught induction we come ...