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How is the high voltage obtained?

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How is the high voltage obtained?

(a) by using a step up transformer

(b) by using a high voltage source

(c) by using a step down transformer

(d) by using a high current source

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Question is from High Voltage Schering Bridge topic in chapter Measurement of Inductance and Capacitance of Electrical Measurements

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The correct choice is (a) by using a step up transformer

Explanation: High voltage supply for a Schering bridge is obtained by making use of a step up transformer. The frequency for the high voltage supply used in a Schering bridge is 50 Hz.

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