P
V
Q. Most SCRs can be turned off by voltage reversal during negative half cycle of the A.C. supply for ?
P
Q. A voltmeter must have very high internal resistance so that ?
R
Q. Errors which may be variable both in magnitude and nature (positive or negative) are classified as ............. error ?
S
Q. The use of ........ instruments is merely confined within laboratories instruments. as standardizing ?
G
Q. To reduce the loading effect, an instrument must possess ?
B
Q. An oscilloscope is basically designed to convert ?
V
Q. A CRO cannot be used for direct measurement of CRO ?
R
Q. The accuracy of null type instruments generally ............ Deflection type instruments ?
A
Q. Which of the following essential features is possessed by an indicating instrument ?
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