Question

The potential difference between and in the circuit shown in figure will be

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A

B

C

D

Hard

Solution

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Correct option is D)

Hint: 
Kirchhoff’s second law, also known as the Kirchhoff’s voltage law (KVL) states that the sum of all voltages around a closed loop in any circuit must be equal to zero.
Step 1: To find the e.m.f of the circuit

The resultant resistance of circuit is 
   
The resultant e.m.f of the circuit is given by


In closed loop 
According kirchhoff's Second law
Therefore, the correct answer is D is .

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