List of top Physics Questions on A Point Charge in an Electric Field

An electric field \(\vec{E}=(2\hat{i}+3\hat{j})N/C\) exists in space. The potential difference (V_P - V_Q) between two points P and Q whose position vectors \(\vec{r}_P=\hat{i}+2\hat{j}\) and \(\vec{r}_Q=2\hat{i}+\hat{j}+\hat{k}\) is