Two resistors and are connected in parallel across an ideal battery of emf

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

Two resistors

R

and

3R

are connected in parallel across an ideal battery of emf

V

. If the total power delivered by the battery is

P

, what fraction of

P

is dissipated in the resistor of resistance

R

? (a)

\dfrac{1}{4}

P

(b)

\dfrac{1}{2}

P

(c)

\dfrac{3}{4}

P

(d)

\dfrac{9}{10}

P