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A battery has e.m.f. 4 V and internal re...

A battery has e.m.f. 4 V and internal resistance r . When this battery is connected to an external resistance of 2 ohms , a current of 1 amp . flows in the circuit. How much current will flow if the terminals of the battery are connected directly

A

2 V

B

3 V

C

4 V

D

6 V

Text Solution

Verified by Experts

The correct Answer is:
C
`(dp)/(dt) = f_(ext)`
For blocks of `1 kg`
friction `f_(r) = mumg = 0.4 xx 1 xx 10 4 N`
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