The direction of magnetic field at any location on the earth's surface is commonly specified in terms of

The rule to determine the direction of a current induced in a coil due to its rotation in a magnetic field is :

What is the unit of measure of magnetic field ?

Assertion (A): The electric field inside a charged metallic sphere is zero. Reason (R): Charges reside only on the outer surface of a conductor. Choose the correct option.

At magnetic poles, the angle of dip is

Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A): Gauss's law in magnetostatics and electrostatics are respectively, ∮B·dS = 0 and ∮…