An inductor of L = 7.75 H with negligible resistance is placed in series with a 8 = 12.1 V battery, a R= 3.00 2 resistor, and a switch. The switch is closed at time t = 0 seconds. Calculate the initial current at i = 0 seconds. I(t = 0 s) = A R Calculate the current as time approaches infinity. Imax A Calculate the current at a time of 2.07 s. I(t = 2.07 s) = A Determine how long it takes for the current to reach half of its maximum,

The circuit shown in the figure contains a resistor and a solenoid. A battery is connected by closing the switch in the figure and provides an EMF Vbat = 15 V. At a time t = 50 ms after the switch is closed the current in the circuit reaches a value of 1.0 A which corresponds to 25 % of its steady state value. What are the values of the resistance and inductance? State your answer to 2 s.f.

R $₁ S₂ 2 L (...) E A 3 H inductor, a 9.75 9 resistor, and a 1.4 V battery are connected as shown above. The circuit also contain two switches, S₁ and S₂. Initially both switches are open. At t = 0 s S₁ is closed while S₂ is left open. a. What is the time constant of the resulting circuit? Submit Answer Tries 0/10 b1. What is the current through the circuit at t = 0 s? b2. What is the current through the circuit after a long time has passed? Submit Answer Tries 0/10 c1. What is the magnitude of the induced emf at t = 0 s? c2. What is the magnitude of the induced emf after a long time has passed? Submit Answer Tries 0/10 d. After the current in the RL circuit has reached its final value (as in b2. above) the positions of the switches are reversed, with S₁ open and S₂. How long does it take for the current to reach a tenth of its initial value?

The current in the RL circuit shown below reaches half its maximum value in 0.5 ms after the switch S1 is thrown. Determine (a) the time constant of the circuit and (b) the resistance of the circuit if L = 200 mH. R Hints a. The time constant is TL = ms. b. The resistance R is Ω.