question_answer

In the circuit shown in the figure, the current through [IIT 1998]

A)            The 3W resistor is 0.50A

B)            The 3W resistor is \[0.25\,A\]

C)            The 4W resistor is 0.50A

D)            The 4W resistor is \[0.25\,A\]

Correct Answer: D

Solution :

                   Equivalent resistance of the circuit \[R=9\Omega \] \ Main current \[i=\frac{V}{R}=\frac{9}{9}=1A\] After proper distribution, the current through 4W resistance is 0.25 A