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Electronic instruments

An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is______________?

Electronic instruments /
An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is______________?

A. nG
B. (n-1)G
C. G/(n-1)
D. G/n

An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is______________? Read More »

Electronic instruments

A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is________________?

Electronic instruments /
A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is________________?

A. nG
B. G/n
C. G/(n-1)
D. (n-1)G

A voltmeter has a resistance of G ohms and range V volts. The value of resistance required in series to convert it into voltmeter of range nV is________________? Read More »

Electronic instruments

If 2% of the main current is to be passed through a galvanometer of resistance G, then resistance of the shunt required is ________________?

Electronic instruments /
If 2% of the main current is to be passed through a galvanometer of resistance G, then resistance of the shunt required is ________________?

A. G/50
B. G/49
C. 49 G
D. 50 G

If 2% of the main current is to be passed through a galvanometer of resistance G, then resistance of the shunt required is ________________? Read More »

Electronic instruments