The current flowing through a circuit is changing at a rate of 6.00 A/s. If the circuit contains a 190.0 H inductor, what is the emf across the inductor?
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- 4.30 N L In the circuit the emf ɛ = 21.3 volts and the inductance L= 150 mH. What will be the energy in Joules in the magnetic field of the inductor 15.5 ms after the switch is closed? (State answer with 3 digits right of decimal. Do not enter unit.) %3D ellThe current in a coil drops from 3.8 A to 1.8 A in 0.51 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil?The figure below shows a circuit with a battery of EMF = 3.75 V, a resistor with R = 2.16 2, and an inductor with L = 2.45 H. If the battery is connected at t = 0, at what time will the rate of energy stored in the inductor be equal to x = 1.89 times the power dissipated in the resistor? i S 99 4+ R L2 2 Hint You can use the conservation of energy to determine the fraction of the power dissipated in the resistor: total energy lost by a battery per unit of time (power) is &I is spent on the rate of energy stored by the inductor and the power dissipated in the resistor I² R. As EMF, resistance, and inductance are given to you, you know the time dependence of the current to calculate the fraction x at any given time.
- In the circuit, the capacitor is fully charged when switch S is closed. Calculate the time needed for the potential energy stored by the circuit to be equally distributed between the capacitor and inductor. The capacitance is C = 10.0 mF and inductance is L = 25.0 H. time = + Q. lelllA 7.2-mH inductor is connected to a current. What is the magnitude of the voltage in the inductor at time t = 3.0 s if the current is I(t) = 5 + 7t -2t2? (Assume two significant digits for each number.)An EMF of 0.218V is induced in a coil when the current in a second coil is changing at a rate of 0.386A/s. What is the mutual inductance between the coils?
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- An inductor stores 775.79J of energy at a current of 3.19A. What is the inductance of the inductor?You have a series RL Circuit hooked up to a battery ('charging'). This means that the inductor is able to store energy it gains from the battery over time. The inductor has a value of L = 31.000 mH while the resistor has a value of R = 34.00 Ohms. The battery they are hooked up to has a value of EMF = 3.00 V. You can assume that at t = 0 s there is no current in the system and the inductor has no energy stored across it. At time t = 1.250 time constants, what is the current in the circuit? Your Answer: Answer unitsA 4.4-μF capacitor has a voltage of 52 V between its plates. What must be the current in a 5.9-mH inductor, such that the energy stored in the inductor equals the energy stored in the capacitor? Number i ++++++ Ē Capacitor Units Inductor B