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An initially uncharged 3.97×10−6 F capacitor and a 7990 Ω resistor are connected in series to...

An initially uncharged 3.97×10−6 F capacitor and a 7990 Ω resistor are connected in series to a 1.50 V battery that has negligible internal resistance.

What is the initial current ?0 in the circuit?

Calculate the circuit's time constant ? .

How much time ? must elapse from the closing of the circuit for the current to decrease to 2.05% of its initial value?

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