For an RL circuit with R = 37.84 Ω and L = 65.79 mH, how long does it take the current to reach 75% of its maximum value?  ms

Bryson and Diego decide to work a practice problem.A resistor, inductor, and a battery are arranged in a circuit. The circuit has an inductance of L = 2 H, and a resistance of 2 kΩ. Switch S1 is suddenly closed at t = 0. Find the time needed for the current to reach a fraction f = 0.5 of its maximum value.

For physics lab, two students constructed an RL circuit similar to the one shown in the figure, with = 6.00 V, L = 7.00 mH, and R = 5.80 Ω.A rectangular circuit contains a battery of emf ℰ on its left side, with the positive terminal above the negative terminal. An open switch S is on the top side, an inductor L is on the right side, and a resistor R is on the bottom side.(a)What is the inductive time constant of the circuit (in ms)? ms(b)Calculate the current in the circuit (in A) 250 µs after the switch is closed. A(c)What is the value of the final steady-state current (in A)? A(d)After what time interval (in ms) does the current reach 80.0% of its maximum value?

If two resistors with resistances R1 and R2 are connected in parallel, as in the figure below, then the total resistance R, measured in ohms (Ω), is given by 1R = 1R1 + 1R2.If R1 and R2 are increasing at rates of 0.3 Ω/s and 0.2 Ω/s, respectively, how fast is R changing when R1 = 90 Ω and R2 = 110 Ω? (Round your answer to three decimal places.)

Calculate the maximum power delivered to the load resistor (RL) for the circuit shown in Fig. 5

Dominic and Zoey decide they are ready to try a homework problem.The AC circuit illustrated in the simulation contains an inductor with inductance L = 1.64 H and has a frequency of f = 1.37 Hz with an applied AC voltage whose maximum is ΔVmax = 2.24 V.Find the inductive reactance. ΩFind the rms current in the circuit. Your response differs from the correct answer by more than 10%. Double check your calculations. A