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In a biased differential relay, the bias is defined as the ratio of 

A) Number of turns of restraining coil and operating coil B) Operating coil current and restraining coil current C) Faulteurrent and operating coil current D) Fault current and restraining coil current

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In a biased differential relay, the bias is defined as the ratio of Number of turns of restraining coil and operating coil 

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