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An ammeter and a voltmeter of resistance...

An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance. Their readings are A and V, respectively. If another resistance R is connected in parallel with the voltmeter, then

A

Both A and V increases

B

Both A and V decreases

C

A decreases but B increases

D

A increase but V decreases

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The correct Answer is:
D
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
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  7. A flat , rectangular coil, carrying current, is placed beside a long s...

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  8. A moving coil galvanometer can be converted into a voltmeter by connec...

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  9. The correct statement among the following is:

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  10. Statement A : The resistance of ideal ammeter is zero Statement B : ...

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  11. Statement A: Ammeter is a low resistance galvanometer Statement B: V...

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  12. To increase the range of a voltmeter we need to connect a suitable:

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  13. An ammeter and a voltmeter of resistance R are connected in series to ...

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  14. Two identical galvanometers are converted into an ammeter and a millia...

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  15. A galvanometer of resistance, G, is shunted by a resistance S ohm. To ...

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  16. A galvanometer can be converted into either an ammeter or a voltmeter....

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  17. The correct match is

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  18. The correct match is

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  20. Arrang the following in decreasing order of their boiling points. A....

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