A coil of turns and area is initially with its plane perpendicular to a uniform…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A coil of

200

turns and area

0.05\,\text{m}^2

is initially with its plane perpendicular to a

0.30\,\text{T}

uniform magnetic field. It is rotated through

90^{\circ}

at constant speed in

0.010\,\text{s}

and is connected to an external resistance of

5\,\Omega

. Neglect the coil’s own resistance. The total charge that flows through the resistor during the rotation is (a)

1.20\,\text{C}

(b)

3.00\,\text{C}

(c)

0.60\,\text{C}

(d)

0.30\,\text{C}