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Input voltage depends on ____________

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Input voltage depends on ____________

(a) resistance

(b) capacitance

(c) current

(d) time-period

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This question is from Dual Slope Integrating Type DVM topic in portion Electronic Instruments of Electrical Measurements

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Correct answer is (d) time-period

The best explanation: The input voltage in a dual slope integrating type DVM is given by the relation,

Vin = Vref ^t2 ⁄ t1

From the above equation it is seen that the input voltage in a dual slope integrating type DVM depends on the time periods t1 for which the capacitor is charged and t2 during which the capacitor is discharged.

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