Figure P7.22 2.4 k. t=0 40 mA (1)27 kN{33 kN3 0.5 µF%3 k! $3.6 kQ Figure P7.22 Full Alternative Text

If in a circuit, E=9v and the current I reaches half its maximum value of 2A at t=0.1s after the switch is closed. What is the time constant of the circuit? What is the emf across the inductor at t=0.1s?

An LC circuit like that in the figure below consists of a 3.30-H inductor and an 836-pF capacitor that initially carries a 118-μC charge. The switch is open for t < 0 and is then thrown closed at t = 0. Compute the following quantities at t = 5.00 ms. 2max 000 (a) the energy stored in the capacitor (b) the total energy in the circuit (c) the energy stored in the inductor 0

The switch in the figure below is open for t < 0 and is then thrown closed at time t = 0. R 2R ww www www (a) Find the current in the inductor. (Use the following as necessary: L, R, t, and for E.) 12- (b) Find the current in the switch as functions of time thereafter. (Use the following as necessary: L, R, t, and & for 8.) switch

Need help with a and b

A 752 uF capacitor has an initial voltage, v(0) = 1 V. If the current flowing through the capacitor is i(t) = 13 mA, what is the voltage v(t) across the capacitor, at time t= 4ms? Enter your answer to 3 significant figures. i(t) v(t)

1. A voltage is being applied across a 0.2 mH inductor as shown below. The current through the inductor at t = 0 is known to be i(0) = 10.0 A r (mv) 0.2 mH t(s) a. Find the current through the inductor as a function of time for t20 (i.e. find i(t) for t>0). b. Find the energy stored in the capacitor at t=1.5 sec.