Question

in the given circuit find the value of R?
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Answer 1

quite simple que. apply kvl in the loop and ans is there .

whole que is solved in the pic

Answer 2

Given :

A circuit diagram .

To Find :

The value of resistance R .

Solution :

To answer this question one should know about Kirchhoff's voltage law  

( KVL ) and Kirchhoff's current law  ( KCL ) .

I will add the link below .

Now , applying  KVL in left loop .

We get ,

$2.5\times 2+I\times R -10=0\\5+I\times R=10\\ I\times R=5$

Also , by KCL , I = 2+1 A=3 A .

Putting value of I in above equation .

We get :

$3\times R =5\\\\R=\dfrac{5}{3}\ \Omega\\\\R=1.67\ \Omega$

Therefore , the value of resistance R is $1.67\ \Omega$ .

Learn More :

KVL and KCL

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