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When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is
high.
small.
ideally zero.
very high.
ideally zero.
Quick Summary: Practice and solve "When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in ..." for Electrical - Measurement & Instrumentation. The correct answer is Option C: ideally zero.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(c) **