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If the resistance of a circuit having 12...

If the resistance of a circuit having 12 V source is increased by `4Omega` the current drops by 0.5 A. What is the original resistance of circuit

A

`4 ohm`

B

`8 ohm`

C

`16 ohm`

D

`1/16 ohm`

Text Solution

Verified by Experts

The correct Answer is:
B
`V = iR
12 = (I - 0.5) (R + 4)`
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