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A cell has an emf of 3 volt and internal...

A cell has an emf of 3 volt and internal resistance `2Omega`. It is connected to an ammeter having resistance `2Omega` and to an external resistance of `100Omega`. When a voltmeter is connected across the `100Omega`. Resistance, the ammeter reading is 40 mA. The resistance of the voltmeter is

A

`49Omega`

B

`98Omega`

C

`147Omega`

D

`245Omega`

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