Question

2 applainces of rating 200 watt-250volts and 100 watt- 250 volts are joined in series to a 250 volts supply. Total power consumed in a circuit is

Answer 1

Explanation:

R1=250×250/200=312.5 ohm

R2=250×250/100=625 ohm

total resistance in series =937.5ohm

so power = 250x250/937.5=66.66watt