Question

The magnetic induction due to short magnetic dipole of moment `0.1" A m"^(2)` at equatorial point 1 cm away from centre of dipole is `(mu_(0)=4pi xx 10^(-7) Wb//A m)`
A. 0.1T
B. 0.01 T
C. 0.001T
D. 0.0001 T

Answer 1

Correct Answer - B
`B=(mu_(0))/(4pi)(M)/(r^(3))=(4pixx10^(-7)xx0.1)/(4pixx(10^(-2))^(3))=0.01T`