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In the circuit shown, keys K1 and K2 bot...

In the circuit shown, keys `K_1` and `K_2` both are closed the ammeter reads `I_0`. But when `K_1`is open and `K_2` is closed, the ammeter reads `I_0//2`. Assuming that ammeter resistance is much less than `R_2`, the values of `r` and `R_1` is Omega are

A

100,50

B

50,100

C

0,100

D

0,50

Text Solution

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The correct Answer is:
D
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