Suppose that a rectangular toroid has 2500 windings and a self-inductance of 0.03 H. If the height of the toroid is 0.06 m, what is the current flowing thruogh a rectangular toroid when the energy in its magnetic field is 4.5 µJ? Hint The current flowing through the toroid is mA.
Q: A solenoid of radius 3.5 cm has 480 turns and a length of 15 cm. (a) Find its inductance. mH (b)…
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Q: Suppose that a rectangular toroid has 2000 windings and a self-inductance of 0.040 H. If h = 0.10 m,…
A: Solution:-Given thatNumber of windings (N)=2000self inductance (L)=0.04 Hh=0.1 mEnergy in magnetic…
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Q: Suppose that a rectangular toroid has 1500 windings and a self-inductance of 0.04 H. If the height…
A: Given : Number of turns, N= 1500 Self Inductance, L =0.04 H Height , h = 0.08 m Energy stored , U=…
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Q: A current of 4.25 A is going through a 7.5 mH inductor is switched off. It takes 8.09 ms for the…
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Q: A solenoid of radius 2.30 cm has 560 turns and a length of 15.0 cm. (a) Find its inductance. mH (b)…
A: to be given questionradius r=2.30 cmturn N=560 turnlength l=0.15 memf = 70 mV
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Q: An emf of 26.5 mV is induced in a 504 turn coil when the current is changing at a rate of 10.5 A/s.…
A: Given data *The given induced emf is E = 26.5 mV = 26.5 × 10-3 V *The number of turns in a coil is N…
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Q: The current in a coil changes from 3-70 A to -goA in the same direction in 0.510s. It the Werage emf…
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Q: In the circuit shown in Fig. , switch S1 has beenclosed for a long enough time so that the current…
A: Given circuit:
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- A 41.0 mA current is carried by a uniformly wound air-core solenoid with 460 turns, a 16.5 mm diameter, and 12.5 cm length. (a) Compute the magnetic field inside the solenoid. HT (b) Compute the magnetic flux through each turn. T.m² (c) Compute the inductance of the solenoid. mH (d) Which of these quantities depends on the current? (Select all that apply.) O magnetic field inside the solenoid magnetic flux through each turn inductance of the solenoidTwo 52-turn coils are magnetically coupled so that a 7.12-A current in one coil produces a magnetic flux of 0.24 Wb through each turn of the other. What is their mutual inductance?A 405 pFcapacitor is charged to 185 V and then quickly connected to a 195 mH inductor. Determine the frequency of oscillation. Determine the peak value of the current. Determine the maximum energy stored in the magnetic field of the inductor.
- Which of the following statements are true? Choose all that apply. A changing magnetic field will always induce a voltage. As current through an inductor decreases, the inductance remains constant. For an LR circuit, as R increases, & decreases. Transformers can simultaneously decrease voltage & decrease current. Generators transform electrical energy (electricity) into kinetic energy. The mks units for inductance are Wb.a) What is the inductance of a coil if it produces an emf of 8.5V when the current in it changes uniformly from -20.0mA to +24.0mA in 22ms? b) How much energy is stored in the inductor at t=5ms?In the figure below the switch S is closed, Supppose the emf of the ideal battery is 12.0 V, the inductance of the ideal inductor L = 30.0 mH, and the resistance R2 = 4.34 ohms and the resistance R2 = 2.17 ohms. When i = 0.17 A 1. how much energy is delivered by the battery? 2. how much of this energy is stored in the magnetic field of the inductor? 3. how much of this energy is dissipated by both resistors? 4. what is the rate dibat/dt at t = 0, t = 0.82 s and t after a long time?
- 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 long, straight solenoidhas N turns, uniform cross-sectional area A, and length l. Show thatthe inductance of this solenoid is given by the equation L = m0 AN2/l.Assume that the magnetic field is uniform inside the solenoid and zerooutside.A solenoid with 500 turns and a cross-sectional area of 0.01 m² is placed in a magnetic fieldthat increases from 0 T to 1 T in 4 seconds. Calculate the average induced EMF in the solenoid.
- A 120V e.m.f is across a transformer's 200-turn primary coil. How many turns should a secondary coil have in order to produce a 30V e.m.f?After being closed for a long time, the switch S in the circuit shown in the figure below is thrown open at t = 0. In the circuit, & = 24.0 V, RA= 3.70 KM, Rß = 7.50 kỵ, and L = 665 mH. RA ww S mo L +1 b ww RB (a) What is the emf across the inductor immediately after the switch is opened? V (b) When does the current in the resistor RÅ have a magnitude of 1.00 mA? SIn your own words, explain why the presence of a ferromagnetic core increases the inductance of a coil. Calculate the inductance of a coil wound on a ferromagnetic cylinder of 2 mm diameter and 10 mm length. There are 200 turns on the coil and the relative permeability of the core is 600. How does a real inductor differ from an ideal component?