An AC generator supplies rms at

PHYSICS · Multi-part · CBSE · Physics · Alternating Current · Alternating Current

Problem

An AC generator supplies

240\,\text{V}

rms at

50\,\text{Hz}

. A resistor

R_1 = 60\,\Omega

is connected directly to the generator. An ideal transformer with turns ratio

N_s:N_p = 1:2

has its primary connected to the same generator, and its secondary feeds a resistor

R_2

. (a) Determine the value of

R_2

so that the average power dissipated in

R_2

equals that in

R_1

. (b) Calculate this common power and the energy dissipated in either resistor in

5

minutes.