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The role of the permanent magnet in a megger is to ________

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The role of the permanent magnet in a megger is to ________

(a) provide field

(b) provide voltage

(c) generate power

(d) balance the circuit

The question was posed to me during a job interview.

Asked question is from Megger in portion Measurement of Resistance of Electrical Measurements

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Right answer is (a) provide field

Explanation: Voltage can be provided by means of an e.m.f source. Power generation occurs when current flows through a circuit. Permanent magnet in a megger is used to provide a field for the generator as well as the ohmmeter.

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