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Electric Circuits
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Electric circuits miscellaneous
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Electric circuits miscellaneous
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Electric Circuits
Electric circuits miscellaneous
At a certain current, the energy stored in iron cored coil is 1000 J and its copper loss is 2000 W. The time constant (in seconds) of the coil is_____
0
1
2
3
Correct Option:
B
Time constant, T =
L
=
I
2
L
=
2 × 1000
= 1
R
I
2
R
2000
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