Grade 12th passElectric Current
L= 3mHi= 80cos150t find the terminal voltage and the energy stored in it
L= 3mH
i= 80cos150t
find the terminal voltage and the energy stored in it
1 Answer
Sanjit
Vt = L.dI/dt
= 3 x 10-3 (80 x 150 x -sin 150t)
= 3600 x 10-3 x -sin 150t
= -3.6 sin 150t
For energy stored......
U=(1/2) LI2
=(1/2) (3 x 10-3) (80 cos 150t)2
=(1/2)(3x10-3) (80 x80 x cos2 150t)
=(1/2)(3 x 10-3) (6400 cos2 150t)
U =9.6 cos2 150t J
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