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An electric heater is rated
PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity
Problem
An electric heater is rated
1000
W
,
250
V
1000\,\text{W},\,250\,\text{V}
1000
W
,
250
V
. It is connected to a
200
V
200\,\text{V}
200
V
mains supply. The power it now dissipates is approximately (a)
800
W
800\,\text{W}
800
W
(b)
512
W
512\,\text{W}
512
W
(c)
640
W
640\,\text{W}
640
W
(d)
1000
W
1000\,\text{W}
1000
W
Related theory
Ohm's Law
Ohm's Law (Macroscopic)
Electric Power
Electrical power and energy
Electricity
Electrical energy and power
Current Electricity
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