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10) A resistor is connected to a capacitor of 3 micro-farads without a battery. The initial...

10) A resistor is connected to a capacitor of 3 micro-farads without a battery. The initial charge of capacitor is 100 micro-coulombs. After 12 milli-seconds, the charge in the capacitor is 37 micro-coulombs. What is the current in the circuit, in milli-amps, at one time constant? Hint: find the value of the resistor first.

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