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The magnetic field energy in an inductor changes from maximum to minimum value in 5.0ms when connected to AC source. Find the frequency of the source

The magnetic field energy in an inductor changes from maximum to minimum value in 5.0ms when connected to AC source. Find the frequency of the source

Grade:12

2 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
8 years ago
=>min=0,max=peak
=>4*5ms=f
=>f=50Hz


Arun Kumar
IIT Delhi
Askiitians Faculty
Chandra Sekhara Rao
24 Points
6 years ago
very good answer is followed by time period. for a quater part of wave pulse energy going down to maximum value to minimum vale. i,e
T/4 = 5ms
T =20ms
f = 1/T  =1/20ms = 50Hz

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