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The role of the compensating coil in a megger is ________

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The role of the compensating coil in a megger is ________

(a) reduce current

(b) increase voltage

(c) control temperature

(d) scaling

The question was posed to me during an interview for a job.

Question is from Megger topic in section Measurement of Resistance of Electrical Measurements

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The correct option is (d) scaling

The explanation is: Temperature is controlled by minimising the flow of current through the circuit. Better scaling proportions can be achieved in a megger by making use of a compensating coil.

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