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Question

Find the value of RPin the given circuit? Vz=8V

JEE Main 2021 Question Physics Paper


A

4Ω

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B

6Ω

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C

3Ω

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D

5Ω

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Solution

The correct option is B

6Ω


Step 1: Given data

Voltage VZ=8V

Voltage of battery VB =20V

Current IZ=2A

Resistance =RP

Find the value of Rp in the given circuit? (VZ = 8V)

Step 2: To find the value of RP

By applying the equation of KVL(Kirchhoff's Voltage Law) rule we can get

VB-VZ-IZ×RP=0

20-8-2RP=02RP=20-8RP=122RP=6

Therefore the value of RP=6Ω

Hence the correct answer is Option B


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