Q. If the total magnetic field due to earth is 28 $Am^{- 1}$; then the total magnetic induction due to earth is
A) 28 T
B) 280 $ab - Acm^{- 1}$
C) 0.352 G
D) 0.325 T
Explanation
(c) $B = \mu_{0}H = 4\pi \times 10^{- 7} \times 28 = 325 \times 10^{- 7}$T
$= 352 \times 10^{- 3}$ G=0.352 G
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.