A heating coil of resistance 44 Ω is connected across a 220 V mains supply.

PHYSICS · Multi-part · A Level · Physics · Electricity · Electricity

Problem

A heating coil of resistance 44 Ω is connected across a 220 V mains supply. (i) Calculate the power consumed by the coil in watt. (ii) Express this power in kilowatt.

Related theory

Electric Power
Electrical energy and power
Current Electricity
Electrical power and energy
Electricity
Electric Circuits

Browse the problem library