A single phase 230 V, 1 kW heater is connected across a 1-phase 230 V, 50 Hz supply through an SCR.
The firing angle of the SCR is adjusted to give a rms voltage of 155 V.
Find the power absorbed by the heater element.
A. 250 watts
B. 1 kW
C. 454 watts
D. 378 watts
Show Answer
Answer: C
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