Question

A heating appliance has a resistance of 120 ohm if 4A current flows through it what is the power of the appliance?​

Answer 1

Answer:

Explanation:

Henceforth, the power of appliance = 460 W

Explanation:

Given,

Resistance of appliances, R = 115 ohms

Current of appliance, I = 2 A

Let the potential difference of the appliance be V. Then,

By ohm's law, we know that,

Resistance = Potential Difference / Current

=> R = V/I

By applying values, we get,

=> 115 = V / 2

=> V = 230

Hence, potential difference of the appliance = 230 V

Now, we know that,

Power = Potential Difference × Current

=> P = V × I

=> P = 230 V × 2 I

=> P = 460 VI

=> P = 460 W

Henceforth, the power of appliance = 460 W