Question

What is the device that can maintain a potential difference across a conductor?
What is meant by saying that the potential difference between two points is
I volt?
How much energy is given to 2 coulomb of charge passing through a cell of
1.5 volt?​

Answer 1

Explanation:

1 )battery

Ans: Any source of electricity like battery, cell, power supply, etc. helps to maintain a potential difference across a conductor.

2 ) If 1 J of work is required to move a charge of amount 1 C from one point to another, then it is said that the potential difference between the two points is 1 V.

3 )Given. Q= 2 C. V = 1.5 V. V = W/Q. W = Q × V. work done = 2 C × 1.5 V. = 3 J. Energy = Work done. Energy = 3 J