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For L-R circuit, the time constant is eq...

For L-R circuit, the time constant is equal to

A

twice the ratio of the energy stored in the magnetic field to the ratio of dissipation of energy in the resistance

B

the ratio of the energy stored in the magnetic field to the ratio of dissipation of energy in the resistance

C

half of the ratio of the energy stored in the magnetic field to the ratio of dissipation of energy in the resistance

D

square of the ratio of the energy stored in the magnetic field to the ratio of dissipation of energy in the resistance

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A
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