A resistor and an inductor are connected in series to a battery. The battery is suddenly removed from the circuit. The time constant for of the circuit represents the time required for the current to decrease to

A)

25% of the original value.
B)

37% of the original value.
C)

50% of the original value.
D)

63% of the original value.
E)

75% of the original value.


B

Physics & Space Science

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