Q.
Two identical incandescent light bulbs are connected as shown in figure. When the circuit is an $AC$ voltage source of frequency $f$, which of the following observation will be correct
A) Both bulbs will glow alternatively
B) Both bulbs will glow with same brightness provided $f = \frac{1}{2\pi}\sqrt{(1/LC)}$
C) Bulb $b_{1}$ will light up initially and goes off, bulb $b_{2}$ will be ON constantly
D) Bulb $b_{1}$ will blink and bulb $b_{2}$ will be ON constantly
Explanation
(a) This is a parallel circuit, For oscillation, the energy in $L$ and $C$ will be alternately maximum
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.