B

Q: Two coils close to each other have a mutual inductance of 32 mH. If the current in one coil decays…

A: Mutual inductance M = 32 mH = 0.032 H The current decays in one coils as   Where Io = 5.0 A α = 2.0…

Q: Two solenoids A and B, spaced close to each other and sharing the same cylindrical axis, have 470…

A: Given that: NA=470 NB=570iA=2.60 AϕA=300μWb=300×10-6 WbϕB=90μWb=90×10-6 Wbdidt=0.5 A/s

Q: List whether the induced voltage from the inductor (L) is positive, negative, or zero from points A…

A: In the given question, We have to discuss about the induced voltage is positive, negative or zero,…

Q: Q4. Consider the below diagram. Derive the magnetic vector potential for loop A and then Find th…

A: Given, Current in wire A=6 A Wire A radius, R= 2cm Radius of wire B r= 6cm

Q: *Chapter 31, Problem 024 GO A single-loop circuit consists of a 7.2 2 resistor, 12.2 H inductor, and…

A: The charge on a capacitor in a series RLC circuit, after time t, is given by:q(t)=Qe-Rt2Lcos(ωt+φ)…

Q: n to take your hair blower to Europe, where the electrical put out 240 V instead of the 120 V seen…

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Q: In the figure, a stiff wire bent into a semicircle of radius a = 2.7 cm is rotated at constant…

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Q: Q2/ For the network shown in figure (Q2), the switch has been open for a long time before closing at…

A: Given that,Inductor (L) = 20mHSince it is given that,                                    From the…

Q: Suppose that a rectangular toroid has 1400 windings and a self-inductance of 0.055 H. If h is 0.08…

A: Concept: To determine the Ratio of outer and inner radii we will consider an infinitesimal element…

Q: For the network shown in figure (Q2), the sw ore closing at t=0. Determine an expression fo ) for…

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Q: Two closely wound circular coils have the same number of turns, but one has twice the radius of the…

A: Inductance is given by L=μ0N2πr2l where μ0=Permeability of free spaceN=Number of turnsr=Radius of…

Q: A current flows through an inductor L, as shown. a b Which statement is TRUE if the current is…

A: Due to the current flowing through the inductor, there will be magentic field inside the inductor.…

Q: A rectangular loop of N closely packed turns is positioned near a long straight wire as shown in the…

A: Given Data : The number of turns of the rectangular wire is given as N = 107 The distance of the…

Q: A coil of 40 turns is wrapped around a long solenoid of cross-sectional area 7.5 x 10-3 m2. The…

A: We know that:- The mutual inductance of a solenoid and its surrounding coil , M Mutual Inductance…

Q: Part A A coil has 3.70 N resistance and 450 mH inductance. If the current is 3.31 A and is…

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Q: A 100 mH inductor whose windings have a resistance of 6.0 is connected across a 11 V battery having…

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Q: What is the self-inductance of a coil that has no current passing through its windings? It is equal…

A: Step 1  - Understanding the formula for self-inductance.                         Self-inductance of…

Q: The figure below shows a toroidal coil of wire with N = 114 loops. If the flux through each loop is…

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Q: It has been proposed to use large inductors as energy storage devices. Part A How much electrical…

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Q: A toroidal coil has a mean radius of 16 cm and a cross-sectional area of 0.25 cm2; it is wound…

A: The radius of the coil is given as , R=16cm=0.16m, The cross-sectional area of the coil is given as,…

Q: A 9.0-V battery is connected in series with a 34-mH inductor, a 160- resistor, and an open switch.…

A: Battery voltage, Inductance value, Resistance,

Q: *Chapter 30, Problem 021 In the figure, a stiff wire bent into a semicircle of radius a = 2.7 cm is…

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Q: 22. * BIO Breathing monitor An apnea monitor for adults consists of a flexible coil that wraps…

A: From Faraday's law of electromagnetic induction, the magnitude of induced emf is given by

Q: An inductor used in a dc power supply has an inductance of 12.5 H and a resistance of 180.0 2. It…

A: Given data, Inductance L = 12.5 H. Resistance R=180 Ω. Current flowing i=0.650 A.

Q: A 16.0-mH inductor is connected to a North American electrical outlet (AVms 120 V, f- 60.0 Hz).…

A: The rms value of voltage, ∆vrms=120v The frequency of ac voltage, f=60 Hz The inductance, L=16 mH…

Q: Two coils are wound around the same cylindrical form, like the coils in the figure below. When the…

A: Given: Current in first coil is decreasing at rate of (di/dt)=-242A/s Induced EMF in the Second…

Q: The inductor in (Figure 1) is a 9.0-cm-long, 2.0-cm-diameter solenoid wrapped with 300 turns.

A: Given: l = 9cm = 0.09m D = 2cm , R = 1cm = 0.01m N = 300

Q: A toroidal coil has a mean radius of 16 cm and a cross-sectional area of 0.25 cm2; it is wound…

A: Solution:-Given thatmean radius of toroidal coil (R)=16 cm=0.16 mcross sectional area (A)=0.25…

Q: The armature of a small generator consists of a flat, square coil with 190 turns and sides with a…

A: The length of the square loop is 1.9 cm. The strength of the magnetic field is 7.95x10-2 T. The…

Q: What is the mutual inductance (in nH) of these two loops of wire? Loop 2 d1 4d af Loop 1 2d Both…

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Q: Two coils close to each other have a mutual inductance of 29 mH. The current in one coil decays…

A: Given that-L=29mHI=I0e-αt   equation 01here, I0=6 Athen, α=1.5×103 By using Faraday's law of…

Q: At t = 0, the current through a 46.0-mH inductor is 57.0 mA and is increasing at the rate of 107…

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Q: An air-filled toroidal solenoid has a mean radius of 15.5 cm and a cross-sectional area of 5.05 cm².…

A: Mean radius r = 15.5cmCross sectional area A = 5.05cm2

Q: The figure shows a rod of length L 8.84 cm that is forced to move at constant speed v 4.19 m/s along…

A: Given : Length of the rod. L = 8.84 cm = 0.0884 m Speed of the rod, v = 4.19 m/s Resistance of the…

Q: A coil of wire containing 800 circular loops with cross section of 60 cm² is placed between the…

A: Given:  Number of loops, N= 800 Area of the loop, A= 60 cm2= 60×10-4  m2 The angle made by magnetic…

Q: An inductor and resistor are initially connected in series with a battery for a very long time.…

A: We need to determine the magnetic energy graph of the system after the circuit was connected to the…

Q: Constant current R source Q4. In figure the source is automatically adjusted to maintain a constant…

A: An RL circuit consist of a resistance and inductor connected in either series or parallel. The…

Q: Two coils of wire are placed close together. Initially, a current of 2.01 A exists in one of the…

A: Mutual inductance is M=−0.047HOrM=−4.68∗10−2HExplanation:Explanation:

Q: The current through inductance L is given by I = Io et/r. ▼ Part A Find an expression for the…

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Q: Part A Determine the mutual inductance M. A2.63 m -long coil containing 225 loops is wound on an…

A: L = 2.63 m N1 = 225 loops N2 = 115 loops μ = 1850μor = 1.30 cm Ii = 14 A If = 0 A t = 0.094 sec

Q: The rectangular loop in the figure has 2.3×10-2 N resistance. (Figure 1) Part A What is the induced…

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Q: Chapter 30, Problem 076 A coil C of N = 121 turns is placed around a long solenoid S of radius R =…

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Q: The inductor in (Figure 1) is a 9.0-cm-long, 2.0-cm-diameter solenoid wrapped with 300 turns. Figure…

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Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.