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.Management Sciences
Category: Electronic instruments
The horizontal plates of a CRO are supplied with _____________ to observe the waveform of signal?
0
A. Sinusoidal wave
B. Cosine wave
C. Sawtooth wave
D. None of the above
The sensitivity of a voltmeter which uses a 100 µA meter movement is ____________?
A. 1 kO/V
B. 10 kO/V
C. 5 kO/V
D. Data insufficient
A VTVM has_____________input resistance than that of a multi meter?
A. More
B. Less
C. Same
D. None of the above
The most accurate device for measuring voltage is ____________?
A. Voltmeter
B. Multimeter
C. CRO
D. VTVM
A VTVM is never used to measure ______________?
A. Voltage
B. Current
C. Resistance
D. None of the above
The materil used to coat inside the face of CRT is ______________?
A. Carbon
B. Sulphur
C. Silicon
D. Phosphorous
What is the total resistance of a voltmeter on the 10 V range when the meter movement is rated for 50 µA of full-scale current ?
A. 10 kO
B. 20 kO
C. 200 kO
D. None of the above
A galvanometer in series with a high resistance is called_______________?
A. An ammeter
B. A voltmeter
C. A wattmeter
D. None of the above
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