A bulb is rated of 100 V and 100 W, it can be treated as a resistor. Find out the inductance of an inductor (called choke coil) that should be connected in series with the bulb to operate the bulb at its rated power with the help of an ac source of 200 V and 50 Hz.
A
B
100 H
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Resistance of bulb is 
Rated current is 
In ac, 
and
henry.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Calculate the value of capacity in picofarad, which will make 101.4 microhenry inductance to oscill…
A 100 mH inductor, a capacitor and resistor are connected in series to a a.c source. Calculate t…
An alternating current of 1.5 mA and angular frequency flows through a resistor and a capacitor …
A bulb of resistance , connected to an inductor of inductance L is in series with an a.c source ma…
A coil of resistance and inductance 1H is connected across an alternating voltage of frequency . …
L, C, R represents physical quantities inductance capacitance and resistance respectively. The comb…