Q. For what value of $R$ the net resistance of the circuit will be $18\ ohms$
A) $8\ \Omega$
B) $10\ \Omega$
C) $16\ \Omega$
D) $24\ \Omega$
Explanation
(c) [image:3_image157.emf]
$\therefore\frac{R \times 16}{R + 16} + 10 = 18$, on solving we get, $R = 16\Omega$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.