The magnetic flux that passes through a loop is defined by the expression ¢g= (P – 4t)× 10¬1 Wb with t in seconds. Find the induced emf for t= 0.9s. L
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Q: A small solenoid with a radius of 12 cm and 100 turns is placed inside a long solenoid (n = 550…
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A: Required Inductance of solenoid. Rate of current to produce an emf of 60 mV
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Q: A solenoid of radius 3.50 cm has 800 turns and a length of 25.0 cm. (a) Find its inductance. mH (b)…
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Q: If the current in a 160-mH coil changes steadily from 25.0A to 10.0A in 350 ms, what is the…
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- Two coils, held in fixed positions, have a mutual inductance of 225 uH. What is the peak emf in one coil when the current in the other coil is i(t) = 14.0 sin(1.10 x 103t), where i is in amperes and t is in seconds?A solenoid of lenght 40 cm has 360 turns of radius 2.8 cm. A tightly wound coil with 8 turns of radius 6 cm is placed around the solenoid. The axes of the coil and solenoid coincide. Find the emf induced in the coil if the current in the solenoid varies according to I = 6sin(120Tt) A. -6.301 cos(120Tt) mVA solenoid of radius 1.50 cm has 600 turns and a length of 25.0 cm. (a) Find its inductance. mH (b) Find the rate at which current must change through it to produce an emf of 90.0 mV. (Enter the magnitude.) A/s
- A solenoid of radius 3.5 cm has 500 turns and a length of 25 cm. (A)Find its inductance. ?mH (b) Find the rate at which current must change through it to produce an emf of 50 mV. (Enter the magnitude.) ?A/sA solenoid is made from a wire wound around a tube 36.0 cm long having a diameter of 8.00 cm. If there are 580 turns of wire, find the inductance of this solenoid. If the current in the solenoid increases at the rate of 4.0 A/s what is the self-induced emf in the solenoid?Chapter 13, Problem 3: Part (a) Express the magnitude of the magnetic flux going through the loop, Φ, in terms of A, t, a, and θ. Φ = ______ Part (b) Express the derivative of the flux with respect of time, dΦ/dt. dΦ/dt = ______ Part (c) Express the magnitude of the emf induced in the loop, ε, in terms of A, a, and θ. ε = ______
- A solenoid of radius 3.10 cm has 680 turns and a length of 25.0 cm. (a) Find its inductance. mH (b) Find the rate at which current must change through it to produce an emf of 90.0 mV. (Enter the magnitude.) A/sA wire loop of radius 0.30 m lies so that an external mag- netic field of magnitude 0.30 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 1.5s. Find the magnitude of the average induced emf in the loop during this timeThe current in a 62 mH inductor changes with time as I = bt- at. With a = 6 A/s and b = the magnitude of the induced emf, E, at 6 A/s, find t = 0.7 s. Answer in units of V. At what time is the emf zero?
- An inductor consists of 100 turns of wire tightly wound about an insulating core. It is attached to a power supply and when the current through it is increased from 0 to 5 A in 3, s an induced emf of 5 V is measured. Find the inductance of this device and the magnetic flux and the energy stored in the magnetic field when the current is held steady at 5 A.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?A solenoid has an inductance of 6 mH. If the current through the solenoid is increased at the rate of 5 A/s, what will be the self-induced emf?