Objective Problems [ Level 1 ]

Aclinic lines are the lines joining places of

Two magnets have the same length and the same pole strength. But one of the magnets has a small hole at its centre. Then,

Magnetic length is

In a deflection magnetometer, the needle is short and the pointer is long, because the

The tangents deflection produced in $\tan A$ and $\tan B$ positions by a short magnet at equal distances are in the ratio

Hysteresis loss for steel is ............ that for iron.

The relation connecting $B, H$ and $I$ in SI system is

Permeability is defined as the ratio between