wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A voltage of peak value 283 V and varying frequency is applied to a series LCR combination in which R=3 Ω, L=25 mH and C=400 μF. Then, the frequency (in Hz) of the source at which maximum power is dissipated in the above circuit, is

A
50.3
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
53.1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
52.5
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
56.7
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 50.3
Given:

V0=283 V, R=3 Ω, L=25×103 H

C=400 μF=4×104 F

Maximum power is dissipated at resonance, at which

ω=1LC

2πf=1LC

f=12πLC=1×72×2225×103×4×104

=7×1034410=50.3 Hz

Hence, option (D) is correct.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
C.4.2 Well Irrigation
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon