Assertion: In a cavity within a conductor, the electric field is zero.
Reason: Charges in a conductor reside only at its surface.

Question

Q. Assertion:

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

Reason: Cross product of a vector is commutative.

Answer 1

Net field inside the conductor is zero because. by 'virtue of induced charges, applied and induced electric fields are equal and opposite thus the net charge resides on surface only. If any cavity is there inside the conductor, electric field will be zero in it.

Assertion: In a cavity within a conductor, the electric field is zero.Reason: Charges in a conductor reside only at its surface.

Assertion: In a cavity within a conductor, the electric field is zero.
Reason: Charges in a conductor reside only at its surface.