Current Electricity Charging Discharging Of Capacitors Question 510

Question: A 10 ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts

[AFMC 1997]

Options:

A) 1310 W

B) 670 W

C) 810 W

D) 1210 W

Show Answer

Answer:

Correct Answer: D

Solution:

$ P=\frac{V^{2}}{R}=\frac{{{(110)}^{2}}}{10}=\frac{12100}{10}=1210W $