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Question

In the given electric circuit, calculate:
(i) the value of resistance R.
(ii) potential difference between A and B.
760884_4ecb2a9c35dd4e34a25d40d773b5cf32.png

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Solution

I )
The value of current through the branch is 1.5 A and the voltage across R is 1 Volt , so the value of Resistance is,
V=IR
So putting the value of V and I is,
R=VI
R=11.5Ω
R=23Ω
II )
Now, Applying Kirchhoff's Voltage law in the branch,
VA(1.5×2)(23×1.5)(4×1.5)=VB
VAVB=10 V

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