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Shunt flux is made to lag the applied voltage using ________

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Shunt flux is made to lag the applied voltage using ________

(a) lead circuit

(b) lag adjustment

(c) lead-lag circuit

(d) transformer

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Enquiry is from Lag Adjustment Devices topic in section Measurement of Power and Related Parameters of Electrical Measurements

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Correct option is (b) lag adjustment

Explanation: We make use of shading coil on the central limb of a shunt magnet and shading bands in order to make the shunt flux to lag the applied voltage by almost 90 degrees.

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