Which of the following represents the variation of current and inductance of inductor? D O a. A O b. C O c. B O d. D

Q: The sketches below show a circular coil and a permanent magnet; the arrows indicate both the…

A: The magnetic field can be altered by the movement of a magnet to produce electromotive force in a…

Q: Which particular part of a the motor can be used to identify an "AC motor? O a Split rings O b.…

A: Which particular part of the motor can be used to identify AC motor ?

Q: How will the self-inductance of a cylindrical solenoid change if its number of turns is halved and…

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Q: The armature of a d.c. The machine has a resistance of 0.25 ohm and is connected to a 300V supply.…

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Q: Why does an electric arc often appear in a switch at the moment it is opened if there is an inductor…

A: electric arc often appear in a switch at the moment

Q: The current (I) takes 5 ms to reach 90% of its max value. The inductance (L) of the coil is equal to…

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Q: 18. The power supply drives the primary coil at 9.9 MHz. If thi frequency is doubled, how must the…

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Q: # 11. If you double the number of turns and double the length of a solenoid by what factor will the…

A: The inductance of a solenoid is given by the expression

Q: Two solenoid are concentric with each other. The inner solenoid has 4x more turns than the outer…

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Q: A conducting ring is held a certain distance above a loop carrying a decreasing current as…

A: If the current in the bottom coil is decreasing, there will be a change in the magnetic field in the…

Q: R, = 1.3n 1.5 A R = 1.52 R3 = 1.82 20V

A: According to the Kirchoff's law, the direction of loop is from higher potential to lower potential.

Q: #2.  Find the mutual inductance M12 of bigger solenoid due to smaller coil inside? Note: The final…

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Q: 8) Atwhat rate would the current in a I00-mH inductor have to change to induce an emf of 1000 V? A)…

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Q: Since inductors can be used as energy storage elements, how much inductance is needed to power up a…

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Q: Two inductors are connected in series to a 120-V, 60-Hz supply. The values of the inductors are…

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Q: In an A.C circuit the current and the voltage are in phase then, the circuit has: O a. Capacitance…

A: In an A.C circuit the current and the voltage are in phase then, the circuit has:

Q: A solenoid with an inductance of 14 mH is charged up from an initial current of 3.0 A to a current…

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Q: d) Determine the total inductance for the connection shown in Figure 5.1 below. L1 2mH 000 14 6mH…

A: Given data, Circuit diagram is given as,

Q: 10 and 11 please

A: 10. When an emf is produced in a coil because of the change in current in a coupled coil, this…

Q: (L11) A 1.96 A current, constant in time, is applied to a 2.29E-3 H inductor. What is the voltage…

A: Current ( I ) = 1.96 A Inductance ( L ) = 2.29 10-3  H                 or L = 0.00229 H

Q: Write any word problem with the graph below and a 50-mhenry inductor

A: Given,  Inductor = 50 mH We need to :- Write any word problem with given graph and a 50-mhenry…

Q: The sketches below show a circular coil and a permanent magnet; the arrows indicate both the…

A: We are going to follow these basic concept to solve this question.

Q: Q11. What resistance should be added in series with a 3.0-H inductor to complete an LR circuit with…

A: Given Inductance L      = 3.0 H Time constant τ = 4.0 ms = 4×10-3 s Find the resistance, as…

Q: The voltage across an inductor is proportional to the inductor and the derivative of the current…

A: As we know that,          Voltage across Inductor is given by :…

Q: In Figure, after switch S is closed at time t= 0, the emf of %3D the source is automatically…

A: (a) Consider the circuit current be i, the current through the inductor be I1, and the current…

Q: Describe the relationship between the charge and current oscillating between a capacitor and…

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Q: When the current through a large inductor is interrupted with a switch, an arc appears across the…

A: In an inductor an induced emf is produced when current flows through it due to mutual inductance.

Q: A-At time t = 0 the charge on the capacitor in the circuit of (figure 3) is 1 coulomb, while the…

A: For capacitorq=Qe-t/RCFor inductori=E/R(1-e-Rt/L)

Q: 6. A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes…

A: Given value--- mutual inductance of 1.5 H. current in one coil changes from 0 to 20 A is 0.5 s, We…

Q: Q1. A trapezoidal loop carrying 2 [A] current is placed parallel to an infinitely long filamentary…

A: Part a: Magnetic field B(r) produced at a distance r by a long straight I1 current-carrying wire is…

Q: An LC circult like the one in the figure below contains an 65.0 m inductor and a 25.0 F capacitor…

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Q: What is the reactance is 10 2 at 60 Hz? self-inductance of a coil whose

A: Solution:-Given thatReactance (XL)=10 ΩFrequency (f)=60 Hz

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.