Question

10 ohm heater opetes on 110 volt. The rate at which heat in watt will be

Answer 1

Answer:

D

Explanation:

1310 W

670 W

810 W

1210 W

Answer 2

Answer:

1210 W

Explanation:

R = 10ohm

V = 110V

H = I²RT

But remember this very important whenever they say the word 'rate of' it means with respect to time that is the value should be divided by time

Therefore,

Rate of Heat = H/T = (I²RT)/T

= I²R

Also, We know that

I = V/R = 110/10 = 11

Putting this in equation we get

Rate of Heat = 11²(10) = 121 × 10 = 1210 W

Hope you understood it........All the best