In the circuit shown, the current through the $4\ \Omega$ resistor is 1 amp when the points $P$ and $M$ are connected to a d.c. voltage source. The potential difference between the points $M$ and $N$ is [image:3_image126.emf]

Question

Dr. Abubacker · Accepted Answer

(b) Given current through $4\Omega$ resistance
Is $1A,$ so P.D. across upper Branch
$i.e.$ P.D. between $P$ and $M$ is $4V$
Hence P.D. between $M\ \&\ N$ is
$\frac{1}{1 + 0.25} 	imes 4 = 3.2V$
[image:3_image194.emf]

Q. In the circuit shown, the current through the $4\ \Omega$ resistor is 1 amp when the points $P$ and $M$ are connected to a d.c. voltage source. The potential difference between the points $M$ and $N$ is

Explanation

Reviewed by Dr. Abubacker

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