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The e.m.f. e and the internal resistance...

The e.m.f. e and the internal resistance r of the battery shwn in figure are 4.3 V and `1Omega` respectively. The external resistance R is `50Omega`. The resistance of the ammeter and voltmeter are `2.0Omega` and `200Omega` respectively. If the switch is thrown to the other side, the reading of the ammeter will be

A

0.02 A

B

0.04 A

C

0.08 A

D

0.12 A

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