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An ammeter and a voltmeter of resistance...

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

A

Both `A` and `V` increases

B

Both `A` and `V` decreases

C

`A` decreases but `V` increases

D

`A` increases but `V` decreases

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