An induced EMF of 16 V exists in a coil when the current in the coil changes at a rate of 42 A/s. What is the self- inductance of the coil?
Q: An inductor has a diameter of 6.0cm,20.0cm long and 500.0 turns . Compute the : a)self inductance…
A: a) The required self inductance is, L=μ0N2Al =4π×10-75002π0.06220.20 =4.44 mH
Q: An emf of 86.5 mV is induced in the windings of a coil when the current in a nearby coil is…
A: The emf induced in the windings of a coil is given by Where e = emf induced, M = Mutual inductance…
Q: Two coils are placed near each other and they have a mutual inductance of 879.1 mH. If the current…
A: mutual inductance(M)=879.1 mH=879.1×10-3H current i(t)=0.5e-1,625.3t to find: induced emf at…
Q: The maximum value of the emf in the primary coil (Np = 1600) of a transformer is 215 V. (a) What is…
A: Given that:- Vp=215 volt Np=1600 Ns=350
Q: A direct current of 25A creates a flux of 1.4 X 10-4 Wb in a coil of 500 turns. What is the…
A: Given that, Current I = 25 A Flux ϕ=1.4×10-4 Wb Number of turns = 500
Q: Two solenoids are part of the spark coil of an automobile. When the current in one solenoid falls…
A: The mutual inductance between two solenoids can be related to the self-inductance of the two…
Q: A coil has 2.55-ΩΩ resistance and 121-mH inductance. If the current is 3.00 A and is increasing at…
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Q: In a coil with an inductance of 5 mi, the current changes in 0.1 ms by 0.2 A. How much…
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Q: An induced EMF of 20 mV is measured across a coil of 50 closely wound turns while the current…
A: Induced Emf ε=20 mV Number of Turns N=50 Initial Current Ii=0.0 A Final CurrentIf=5.0 A Time…
Q: The mutual inductance between two coils is 3.25 mH. A changing current in the primary coil resulted…
A: The induced emf is given by e= Md idt where, M is the mutual inductance, and di/dt is the rate of…
Q: Two coils of wire are placed close together. Initially, a current of 3.80 A exists in one of the…
A: Given: The current in the coil is I=3.80 A. The time for which current revolve in the coil is…
Q: What is the inductance of a coil if the coil produces an emf of 2.86 V when the current in it…
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Q: In the circuit shown in the figure the coil has an inductance L = 0.35 H and a resistance of 23 Ω.…
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Q: An emf of 0.40 V is induced across a coil when the current through it changes uniformly from 0.10 to…
A: Given that-emf= 0.40 VTime= 0.30 secChange in current from 0.60A to 0.10AEMF which is induced in the…
Q: A coil with a self-inductance of 2.0 H carries a current that varies with time according to…
A: when the current passing through the coil changes then the emf is induced in the coil which is…
Q: The magniotude of the emf induced in an inductor is 1.5V when the current in the inductor is…
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Q: The current in a coil drops from 4.2 A to 2.8 A in 0.51 s. If the average emf induced in the coil is…
A: Given: The initial current in the coil is 4.2 A. The final current in the coil is 2.8 A. The time…
Q: Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of
A: Given: The initial current is 5.0 A. The final current is 0.0 A. The time is…
Q: The current in a coil changes from 3.60 A to 1.90 A in the same direction in 0.510 s. If the average…
A: Given data : Current , I1 = 3.60AI2 = 1.90A…
Q: A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0…
A: Faraday gave the principles of Electromagnetic Induction which meant that change in the magnetic…
Q: When the current through an inductor is decreasing at a constant rate of 0.5A/s, the magnitude of…
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Q: The primary coil of a transformer has 329 turns; the secondary coil has 1000 turns. An alternating…
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Q: The current in a coil drops from 3.4 A to 2.1 A in 0.48 s. If the average emf induced in the coil is…
A: Initial current is (I)i = 3.4 A Final current is (I)f = 2.1 A ∆t = 0.48 s Average emf induced is…
Q: The maximum induced emf in a generator rotating at 200 rpm is 40 V. How fast must the rotor of the…
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Q: n the circuit shown in the figure the coil has an inductance L = 0.33 H and a resistance of 21 Ω .…
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Q: The current in an inductor decreases linearly from 2 mA to zero in 4 ms. Calculate the average emf…
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Q: The 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…
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Q: dI A coil with a self-inductance of 4.5 H carries a current that decreases at a uniform rate =…
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Q: The current in an inductor decreases linearly from 2 mA to zero in 4 ms. Calculate to find the…
A: The initial value of the current is 2 mA. The final value of the current is 0. The time taken to…
Q: Two coils close to each other have a mutual inductance of 23 mH. The current in one coil decays…
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Q: A coil has 3.45 Ω resistance and 450 mH inductance. If the current is 3.92 A and is increasing at a…
A: The equation for the potential difference across the coil can be given by the equation
Q: Two coils of wire are placed next to each other. The current in the first coil increased from 0 to…
A: According to the laws of electromagnetic induction, the induced emf in the coil is given by where,…
Q: The current in a coil drops from 3.8 A to 1.9 A in 0.52 s. If the average emf induced in the coil is…
A: The self induction of the coil is 3.28 mH
Q: Two 52-turn coils are magnetically coupled so that a 7.12-A current in one coil produces a magnetic…
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Q: When the current in one coil changes at a rate of 5.6 A/ s, an emf of 6.3 × 10−3 V is induced in a…
A: Mutual indutance is the magnetic flux through coil 2 due to current in coil 1.
Q: Two coils of wire are placed next to each other. The current in the first coil increased from 0 to…
A: The mutual inductance between the coils can be determined as follows, Here, ε2 and ΔI1/Δt represent…
Q: A 7.50 nF capacitor is charged to 12.0 V, then disconnectedfrom the power supply and connected in…
A: Given: The value of the capacitor is 7.50 nF. The voltage is 12 V. The time…
Q: An inductor of inductance 7.0 H and resistance 27 Q is connected in series with a battery of emf 12…
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Q: The current in a coil changes according to the formula: I = 0.5 − 0.2 t where t is in seconds and I…
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Q: An emf of 96.0 mV is induced in the windings of a coil when the current in a nearby coil is…
A:
Q: coil has 2.55-Ω resistance and 121-mH inductance. If the current is 3.00 A and is increasing at a…
A:
Q: ) What is the inductance of a coil if it produces an emf of 8.5V when the current in it changes…
A: Given: The induced emf is 8.5 V. The initial current is -20 mA. The final current is 24 mA. The time…
Q: Two coils of wire are placed next to each other. The current in the first coil increased from 0 to…
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Q: The current in a circuit containing a coil, a resistor, and a battery has reached a constant value.…
A: (a) In the L-R circuit, as the current increases in the coil, it opposes the change but after a…
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