Question

Two identical bar magnets are fixed with their centres at a distance $d$ apart. $A$ stationary charge $Q$ is placed at $P$ in between the gap of the two magnets at a distance $D$ from the centre $O$ as shown in the figure. The force on the charge $Q$ is

• A. zero
• B. directed along $OP$
• C. directed along $PQ$
• D. directed perpendicular to the plane of paper

Answer 1

Answer: (A)

zero

Answer 2

Magnetic field due to bar magnets exerts force on moving charges only. Since the charge is at rest, zero force acts on it.