What is electric potential? Explain with five examples.
Asked by rajashivramkarmali | 14th Jun, 2016, 04:57: PM
- A charge with a magnitude so small that placing it at a point has a negligible affect on the field around the point is called test charge.
- When such a charge is placed in the electric field due to another charge, it experiences a force.
- For this positive test charge to move against this force of repulsion, work has to be done.
- This work done in moving a unit positive charge from infinity to that point is called electric potential
- If one joule of work is done to move one coulomb of positive charge from infinity to that point, then electric potential of one volt is said to be existant at that point.
Answered by Abhijeet Mishra | 27th Nov, 2017, 04:08: PM
- A coil draws a current of 1.0 ampere and a power of 100 watt from an A.C. source of 110 volt and 5√22/π hertz. Find the inductance and resistance of the coil. Why can't I use P=VI here, and how can I determine when to use P=VI or P=I^2 R or P=V^2 / R
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