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1. |
Calculate the value of an unknown resistance when it is connected in parallel to a 250 V supply with a 100-watt, 250 V lamp (assuming that the resistance of the lamp remains unchanged); The total dissipated power in the circuit is 1100 watts. |
A. | 38 Ω |
B. | 62.5 Ω |
C. | 24 Ω |
D. | 20 Ω |
Answer» C. 24 Ω | |