After a Switch Is Thrown to Remove the Battery from a DC

question 11

Multiple Choice

After a switch is thrown to remove the battery from a DC LR circuit, but the circuit is still left complete, the time constant represents

• A) the time rate of change of the current in the circuit.
• B) the time rate of change of the induced emf in the circuit.
• C) the magnitude of the ratio of the current to the time rate of change of the current.
• D) all of the above.
• E) only (a) and (b) above.

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