Question

The current through 2ohm is 1 A the potential difference across a and b is​

Answer 1

Answer:

2+(1/6+1/3)

2+(1+2/6)

2+(3/6)

2+1/2

4+1/2

5/2

2.5 is potential diff

Answer 2

Equivalent resistance between A and B

will be

$\frac{1}{R_{p}}=\frac{1}{R_{1}}=\frac{1}{R_{2}}$

$\frac{1}{R_{p}}=\frac{1}{6}+\frac{1}{3}$

$R_{p}=2ohm$

$R_{series}=2+2=4ohm$

Hence equivalent resistance between A and B is 4ohm

From kirchoff's Law

$V_{A}-4I=V_{B}$

Given I =1A

$V_{A}-4=V_{B}$

POYENTIAL DIFFERENCE ACROSS A and B

$V_{A}-V_{B}=4Volts$