Electrical Engineering MCQs

Page No. 77

A VTVM is never used to measure ______________?


aVoltage


bCurrent


cResistance


dNone of the above


View Answer Current

For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO?


aSinusoidal


bRectangular


cSawtooth


dNone of the above


View Answer Sawtooth

A galvanometer of resistance G is shunted by a very small resistance S. The resistance of the resulting ammeter is ______________?


aGS/(G+S)


bG+S


cG-S


dNone of the above


View Answer GS/(G+S)

The sensitivity of a voltmeter which uses a 100 µA meter movement is ____________?


a1 kO/V


b 10 kO/V


c5 kO/V


dData insufficient


View Answer 10 kO/V

The materil used to coat inside the face of CRT is ______________?


aCarbon


bSulphur


cSilicon


dPhosphorous


View Answer Phosphorous

The most accurate device for measuring voltage is ____________?


aVoltmeter


bMultimeter


cCRO


dVTVM


View Answer CRO

A VTVM has_____________input resistance than that of a multi meter?


aMore


bLess


cSame


dNone of the above


View Answer More

If the full-scale deflection current of a multimeter is 50 µA, its sensitivity is ________________?


a10 kO/V


b100 kO/V


c50 kO/V


d 20 kO/V


View Answer 20 kO/V

A voltmeter is connected in a _____________ with the circuit component across which potential difference is to be measured?


aParallel


bSeries


cSeries or parallel


dNone of the above


View Answer Parallel

A galvanometer in series with a high resistance is called_______________?


aAn ammeter


b A voltmeter


cA wattmeter


d None of the above


View Answer A voltmeter

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