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Consider the circuit shown in the figure below. Take  = 6.00 V, L = 7.60 mH, and R = 4.32 Ω. A circuit contains a battery, a switch, an inductor, and a resistor. The circuit starts at the positive terminal of the battery labeled emf ℰ, goes through the switch labeled S, goes through the inductor labeled L, goes through the resistor labeled R and ends at the negative terminal of the battery. (a) What is the inductive time constant of the circuit?

Consider the circuit shown in the figure below. Take  = 6.00 V, L = 7.60 mH, and R = 4.32 Ω. A circuit contains a battery, a switch, an inductor, and a resistor. The circuit starts at the positive terminal of the battery labeled emf ℰ, goes through the switch labeled S, goes through the inductor labeled L, goes through the resistor labeled R and ends at the negative terminal of the battery. (a) What is the inductive time constant of the circuit?

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Consider the circuit shown in the figure below. Take  = 6.00 V, L = 7.60 mH, and R = 4.32 Ω.

A circuit contains a battery, a switch, an inductor, and a resistor. The circuit starts at the positive terminal of the battery labeled emf ℰ, goes through the switch labeled S, goes through the inductor labeled L, goes through the resistor labeled R and ends at the negative terminal of the battery.
(a) What is the inductive time constant of the circuit?
 ms

(b) Calculate the current in the circuit 250 µs after the switch is closed.
 A

(c) What is the value of the final steady-state current?
 A

(d) How long does it take the current to reach 79.0% of its maximum value?
 ms
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