First slide

Electrostatic potential

Question

When a positive q charge is taken from lower potential to a higher potential point, then its potential energy will

Easy

A

decrease
B

increases
C

remain unchanged
D

become zero

Solution

$\begin{array}{rcl} ΔP . E . & = & Work done by external agent \\ = & (V_{f} q - V_{i} q) \\ V_{f} & > & V_{i} \Rightarrow ΔP . E . > 0 i . e . P . E . will increase \end{array}$

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