Question

The potential difference between the terminals of an electric heater is 60v when it draws a current of 4A from the source find the resistance of heater when in use

Answer 1

Potential difference , V = 60V

Electric current, I = 4A

Let R be the resistance of heater

We know that ,

V = IR

Thus , R = V/I

R = 60/4

R = 15 Ohm

Resistance of heater = 15 Ohm

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