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A voltmeter has resistance 2000 Omega an...

A voltmeter has resistance `2000 Omega` and range 0.5 V. For increasing its range upto 20V, a resistance of

A

`8000 Omega ` should be connected in series.

B

`6000 Omega ` should be connected in series.

C

`8000 Omega ` should be connected in parallel

D

`6000 Omega ` should be connected in parallel.

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