A. 51.9Ω
B. 52.9Ω
C. 55.9Ω
D. 57.6Ω
Correct Answer:
Option B = 52.9Ω
Explanation
Electric Power = IV = I2R = V2/R thus for a device rated 1000 W, 230V, from the relation P = V2/R, 1000 = (230)2/R
=> R = (230)2/1000
= 52900/1000 = 52.9Ω
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