What percentage of the final current I0 flows through an inductor L in series with a resistor R , three time constants after the circuit is completed?

An RL circuit consists of a switch, an emf source E,, a 3.0 ka resistor, and a 1.0H inductor. If the potential across the resistor is 15.0 V 8.0 ms after the switch is closed, find the source emf, E..

A 10 -mH inductor and a 25 MF (micro F) capacitor are connected in parallel. The combination is in series with a resistor and a 15 Ohm resistor and 10V, 160Hz emf. (a) What is the current through the resistor? (b) What is the phase angle?

In a home stereo system, low sound frequencies are handled by large “woofer” speakers, and high frequencies by smaller “tweeter” speakers. For the best sound reproduction, low-frequency currents from the amplifier should not reach the tweeter. One way to do this is to place a capacitor in series with the 8.0 Ω resistance of the tweeter; one then has an RLC circuit with no inductor L (that is, an RLC circuit with L = 0). What value of C should be chosen so that the current through the tweeter at 200 Hz is half its value at very high frequencies?

A 12.0 V battery is connected into a series circuit containing a 20.0 resistor and a 1.50 H inductor. (a) In what time interval (in s) will the current reach 50.0% of its final value? S (b) In what time interval (in s) will the current reach 90.0% of its final value? S What If? After a very long time, using a switch like that shown in the figure below, the battery is removed and the inductor is connected directly across the resistor. R Są ob ก ε ele (c) In what time interval (in s) will the current decrease to 50.0% of its initial value? S (d) In what time interval (in s) will the current decrease to 10.0% of its initial value? S

A 17.0 μF capacitor is charged by a 130.0 V power supply, then disconnected from the power and connected in series with a 0.280 mH inductor. Calculate the energy stored in the inductor at  t  = 1.30  ms .

A charged capacitor and an inductor are connected in series. At time t = 0 the current is zero, but the capacitor is charged. If T is the period of the resulting oscillations, the next time after t = 0 that the current is a maximum is ?

In a home stereo system, low sound frequencies are handled by large "woofer" speakers, and high frequencies by smaller "tweeter" speakers. For the best sound reproduction, low-frequency currents from the amplifier should not reach the tweeter. One way to do this is to place a capacitor in series with the 9.0 Ω resistance of the tweeter; one then has an RLC circuit with no inductor L (that is, an RLC circuit with L = 0). What value of C should be chosen so that the current through the tweeter at 200 Hz is half its value at very high frequencies?