Q. Some equipotential surfaces of the magnetic scalar potential are shown in the figure. Magnetic field at a point in the region is
A) $10^{- 4}T$
B) $2 \times 10^{- 4}T$
C) $0.5 \times 10^{- 4}T$
D) None of these
Explanation
(b) $|B| = \frac{\mathrm{\Delta}V}{\mathrm{\Delta}x} = \frac{0.1 \times 10^{- 4}}{0.1\sin{30{^\circ}}} = 2 \times 10^{- 4}T$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.