If the equivalent resistance between the terminal points P and Q is 4 Ω in the given circuit, then find out the resistance of R in ohms

Open MARKS Web Download App

Search any question & find its solution

Question: Answered & Verified by Expert

If the equivalent resistance between the terminal points

P

and

Q

is

4 Ω

in the given circuit, then find out the resistance of

R

in ohms

PhysicsCurrent ElectricityNEET

Options:

A $7$
B $4$
C $2$
D $5$

Solution:

1525 Upvotes Verified Answer

The correct answer is:

7

Equivalent circuit is,

Therefore equivalent resistance is,

R_{e q} = \frac{R (\frac{4 R}{3})}{R + \frac{4 R}{3}}

4 = \frac{4 R}{7}

R = 7 Ω

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play