Question

A negative charge released from a point P moves along the line PQ . the potential at P is 10 volt and where is uniformly along PQ. what will be the potential at Q(less than, equal to or greater than 10 volt)?
give reason for your answer..

Answer 1

potential at Q greater than 10 volt because negative charge moves lines PQ its mean that's electric field direction Q to P so that force on charge P to Q.also we know that going on electric field direction potential reverse but here change moves opposite direction of electric field so that potential increase.

Answer 2

The potential at Q will be greater than 10 volts.

1) as we know that any charge moves when there is a potential gradient.

2) basically potential gradient is the variation of the potential with respect to the length.

3) Lets take an example of the circuit as we know that the current flows from positive terminal to the negative terminal.

4) we also have studied that the current is produced in the opposite direction of the flow of electrons.

5) Which means that in a circuit the electrons move from negative terminal to the positive terminal.

6) From all this we can conclude that the negative charge moves from lower potential to higher potential.

7) So for a negative charge to move from P (10 volts) to Q, the potential of Q must be greater than P(10 Volts).