Two coils, held in fixed positions, have a mutual inductance of 225 µH. What is the peak emf in one coil when the current in the other coil is i(t) = 14.0 sin(1.10 x 10 t), where i is in amperes and t is in seconds?
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- A transformer has a primary coil with 150 turns of wire and a secondary coil with 300 turns. An AC power supply connected across the primary coil has a voltage given by the function Δv = (160 V)sin(?t). What rms voltage (in V) is measured across the secondary coil?LRC circuit contains a parallel-plate capacitor with plates of area 23.50 m^2, separated by 1.47 mm and completely filled with dielectric (dielectric constant k = 3.32), 20.87 Ohm resistor and toroidal solenoid inductor with 979.50 turns of wire, a cros-sectional area of 2.66 cm^2, and mean radius of 4.42 cm. The components are connected in series to an emf source operating with a 51.46 V amplitude at 109.38 Hz. What is resonance angular frequency (rad/s)?A loop of wire has a self-inductance of 5.5 mH. You pass a current of 9.0 Amps though the loop, and then drop the current to 0 at a contastant rate over 3.5 seconds. What is the EMF generated?
- An RLC circuit has a resistance of 135 2 and an inductance of 25 mH. Its oscillation frequency is 6300 Hz. At time t = 0, the current is 35 mA, and there is no charge on the capacitor. After one complete cycle, the current isTwo resistors of resistance R1and R2 are placed in series across a battery with voltage V, such that a current I=V/(R1+R2) flows around the circuit. If a coil with inductance L is then placed inparallel withR1, what is the new currentIa long time after the coil has been added? Give your final answer.A voltage of 0.35 V is induced across a coil when the current through it changes uniformly from 0.1 to 0.55 A in 0.35 s. What is the self-inductance of the coil? Hint The self-inductance of the coil is H.
- How many turns of wire would be required to make a 150 mH inductance out of a 20.0 cm-long air-filled coil with a diameter of 4.8 cm?The primary coil of a transformer has N1 = 4.25 x 102 turns, and its secondary coil has N2 = 1.28 x 103 turns. If the input voltage across the primary coil is Av = (190 V) sin wt, what rms voltage is developed across the secondary coil? 572.23 Your response differs from the correct answer by more than 10%. Double check your calculations. VThe current in a coil decreases from 9.0 A to 5.5 A in 0.30 s. If the average emf induced in the coil is 25 mV, what is the self-inductance of the coil?