Q.
If power dissipated in the $9\ \Omega$ resistor in the circuit shown is 36 Watt, the potential difference across the $2\ \Omega$ resistor is
A) $2\ volt$
B) $4\ volt$
C) $8\ volt$
D) $10\ volt$
Explanation
(d) Current in $9\Omega$ is $2A,$ so that in $6\Omega$ is $3A.$ Total current is $2 + 3 = 5A.$ Potential drop $5 \times 2 = 10\ V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.