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A circuit has a resistance of 2 ohm connected in series with a capacitance of 6F. Calculate the charging time constant.

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A circuit has a resistance of 2 ohm connected in series with a capacitance of 6F. Calculate the charging time constant.

(a) 3

(b) 1

(c) 12

(d) 8

I got this question in an international level competition.

Origin of the question is Growth and Decay topic in section Capacitance and Capacitors of Basic Electrical Engineering

1 Answer

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Best answer
Right choice is (c) 12

Best explanation: The charging time constant in a circuit consisting of a capacitor and resistor in series is the product of the resistance and capacitance = 2*6 = 12.

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