A 2.00-H inductor carries a steady current of 0.500 A. When the switch in the circuit is opened, the current is effectively zero after 10.0 ms. What is the average induced emf in the inductor during this time interval?

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5 Jan 2021

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An LC circuit consists of a 3.30-H inductor and an 840-pF capacitor that initially carries a 105-C charge. The switch is open for t<0 and is then thrown closed at t=0. Compute the following quantities at t=2.00 ms:

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A 10.0 milliHenry inductor and a 4.5-ohm resistor are wired in series to a 9 volt battery. A switch in the circuit is closed at time 0, at which time the current is zero. After a long time the voltage across the resistor and the voltage across the inductor are:

(a) In Figure 30-28a, assume that the switch S has been inposition A for sufficient time so that a steady currentI₀= V₀/R flows through the resistor R. Attime t=0. the switch is quickly switched to position B and thecurrent through R decays according to I=I₀*e^-t/Ï.

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(b) In Figure 30-28b, assume that the switch has been inposition A for sufficient time so that a steady currentI₀= V₀/R flows through the resistor R. Attime t=0. the switch is quickly switched to position B and thecurrent decays through resistor R' (which is much greater than R)according to I=I₀*e^-t/Ï'.

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A 2.00-H inductor carries a steady current of 0.500 A. When the switch in the circuit is opened, the current is effectively zero after 10.0 ms. What is the average induced emf in the inductor during this time interval?

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