Question

by passing 240 volt in an electric heater, 2A current passed through it. Find the current passed in the heater if 120 volt is passed and also calculate the resistance of coil of heater.
it's urgent answer plzzz
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Answer 1

V = IR ( Ohm’ s law)

240 = 2R, R = 240/2 = 120Ω

Resistance is 120Ω.

Now V = 120v

Again using ohm’s law....

V = IR,

120 = I (120)

120/120 = I

I = 1A