Question

How much current will an electric heater draw from 210v sources , if the resistance of heater coil 150 ohm 's ?​

Answer 1

Explanation:

Given that the heater can bear a maximum current of 1 ampere we need to add a resistance to the circuit in series with the heater  so that current is less or equal to 1 ampere.

Given that the heater can bear a maximum current of 1 ampere we need to add a resistance to the circuit in series with the heater  so that current is less or equal to 1 ampere.Let that resistance be R, then (150+R)×1=220

Given that the heater can bear a maximum current of 1 ampere we need to add a resistance to the circuit in series with the heater  so that current is less or equal to 1 ampere.Let that resistance be R, then (150+R)×1=220R=70 ohm