Question

S
4
11. A heater rated 200w-220v is connected to a 220v power
supply. Calculate the resistance of the heater and the current
flowing through it.​

Answer 1

Answer:

R = 242 ohm

I = 0.91 Amp

Sol.

$p = {v}^{2} \div \: R$

$200 = {220}^{2} \div R$

R = 242ohm

I = V/R

I = 220/242

I = 0.91Amp