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If the ammeter in the given circuit read...

If the ammeter in the given circuit reads 2 A, the resistance R is-

A

1 ohm

B

2 ohm

C

3 ohm

D

4 ohm

Text Solution

Verified by Experts

The correct Answer is:
A
`I = 6/((3 xx 6)/9 + R) rArr 2 = 6/(2 +R)`
`rArr 6 = 4 + 2R rArr 1 Omega`
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