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Two Capacitors (4.4 uF) and two resistors (1.4 k ohms) are connected in series with a...

Two Capacitors (4.4 uF) and two resistors (1.4 k ohms) are connected in series with a battery (15V). How much time does it take after the circuit is connected before the current drops from its initial value to 1.5 mA

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