A coil has 100 turns

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A coil has 100 turns, each of area

0.05 \text{ m}^2

and total resistance

1.5 \Omega

. It is inserted at an instant in a magnetic field of

90 \text{ mT}

, with its axis parallel to the field. The charge induced in the coil at that instant is : (A)

3.0 \text{ mC}

(B)

0.30 \text{ C}

(C)

0.45 \text{ C}

(D)

1.5 \text{ C}