Consider a circuit having resistance 10 kΩ, excited by voltage 5 V and an ideal switch S. If the switch is repeatedly closed for 2 ms and opened for 2 ms, the average value of i(t) is ____________(a) 0.25 mA(b) 0.35 mA(c) 0.125 mA(d) 1 mAI have been asked this question in an interview.The query is from Advanced Problems on Two Port Network topic in chapter Two-Port Networks of Network Theory

Consider a circuit having resistance 10 kΩ, excited by voltage 5 V a

1.	Consider a circuit having resistance 10 kΩ, excited by voltage 5 V and an ideal switch S. If the switch is repeatedly closed for 2 ms and opened for 2 ms, the average value of i(t) is ____________(a) 0.25 mA(b) 0.35 mA(c) 0.125 mA(d) 1 mAI have been asked this question in an interview.The query is from Advanced Problems on Two Port Network topic in chapter Two-Port Networks of Network Theory
Answer» Correct OPTION is (c) 0.125 mA The explanation: Since i = \(\frac{5}{10 × 2 X 10^{-3}}\) = 0.25 × 10^-3 = 0.25 mA. As the switch is REPEATEDLY CLOSE, then i (t) will be a square wave. So average value of electric current is (\(\frac{0.25}{2}\)) = 0.125 mA.

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