Question

What is the current through $6\Omega$ resistor in the given circuit?

• A. 3 A
• B. 1.5 A
• C. 6 A
• D. 12 A

Answer 1

Answer: (B)

1.5 A

Given : $V=18$ volts

Equivalent resistance between A and B $R_{AB}=6\parallel 6=\frac{6\times 6}{6+6}=3\Omega$

Thus voltage between A and B $V_{AB}=\frac{R_{AB}}{R_{AB}+3}V=\frac{3}{3+3}\times 18=9$ volts

Current through $6\Omega$, $I=\frac{V_{AB}}{6}=\frac{9}{6}=1.5$ A