Q150 / 160 · AP EAMCET 2008 · Physics

Two charges $+q$ and $-q$ are kept apart. Then at any point on the right bisector of line joining the two charges

  • A
    the electric field strength is zero
  • Correct answer
    B
    the electric potential is zero
  • C
    both electric potential and electric field strength are zero
  • D
    both electric potential and electric field strength are non-zero

Solution

At equitorial point $$ E_e=\frac{1}{4 \pi \varepsilon_0} \frac{p}{r^3} $$ (directed from $+q$ to $-q$ ) and $V_e=0$.

Hence, the correct answer is option: 'B'.

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