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A heater is designed to operate at and draws a current of
PHYSICS · Subjective · A Level · Physics · Electricity · Electricity
Problem
A heater is designed to operate at
200
V
200\,\text{V}
200
V
and draws a current of
5
A
5\,\text{A}
5
A
. During prolonged use, the resistance of its element increases by
10
%
10\%
10%
while the supply voltage remains unchanged. Calculate the percentage change in the power drawn by the heater.
Related theory
Resistance & Resistivity
Electric Power
Electrical energy and power
Current Electricity
Electrical power and energy
Electricity
Electric Circuits
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