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The resistance of 12 Omega each are conn...

The resistance of `12 Omega` each are connected as shown in the figure. Then, the effective resistance between A and B is:

A

`18.8 Omega`

B

`24/8 Omega`

C

`28.4 Omega`

D

`12.4 Omega`

Text Solution

Verified by Experts

The correct Answer is:
d

Equivalent resistance between
`AP = (12 xx 12)/(12 + 12) = 6 Omega`
Equivalent resistance between
`PQ = 12/3 = 4 Omega`
Equivalent resistance between
`QB = 12/5 = 2.4 Omega`
`therefore` Equivalent resistance between
`AB = 6 Omega + 4 Omega + 2.4 Omega`
`= 12.4 Omega`
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