what is the inductance of a coil wire that generates an instantaneous voltage of 1 v when the instantenous rate of change in current is 0.1 A/s? a. 0.1 H b. 0.5 H c. 5.0 H d. 10 H

Q: An emf of 0.80 Vv is induced across a coil when the current through it changes uniformly from 0.30…

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Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…

A: The potential of the batteries is VB=9.0 V The current in the batteries is IB=249 mA The potential…

Q: The coil in a 60-Hz ac generator has an area of 3.0 x 10^-2m^2 and is rotated in a 0.12 T magnetic…

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Q: A transformer has a primary voltage of V,= 400 V and primary current of I,= 1.5 A. If the measured…

A: Given : primary voltage, Vp = 400 V              primary current, Ip = 1.5 A              Secondary…

Q: An induced EMF of 16 V exists in a coil when the current in the coil changes at a rate of 42 A/s.…

A: Given data: Induced EMF is, e=16 V. Rate of change of current is, dIdt=42 A/s.

Q: 5. A boost converter supplies 48V to a a 12ohm load from a 18V d.c. supply. The converter inductance…

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Q: An emf of 0.50 V is induced across a coil when the current through it changes uniformly from 0.20 A…

A: solution is given by

Q: An inductance coil operates at 240 V and 60.0 Hz. It draws 11.7 A . What is the coil's inductance?

A: Voltage across the inductor is,

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: A 0.20-m length of wire moves at a constant speed of 5 m/s in at 1400 with a 0.4-T field. What is…

A: Given that:- Length of wire=0.2m

Q: In the circuit, the capacitor is fully charged when switch ?S is closed. Calculate the time needed…

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Q: A Step-Down Transformer. A transformer connected to a 120-V (rms) ac line is to supply 12.0 V (rms)…

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Q: An emf of 5.7 x 10 -3 V is induced in a coil while the current in a nearby coil is decreasing at a…

A: Using the relation between induced emf and iductance,

Q: A "magnetic shield member" that wraps the inductance is used so that the magnetic field from the…

A: Discuss about the hard and soft magnetic materials. which are the best shield materials.

Q: When the current through an inductor is decreasing at a constant rate of 0.3 A/s, the magnitude of…

A: rate of decrease of current(didt )=-0.3A/s Magnitude of induced EMF= 6 V Electric current I= 5A

Q: For the following scenarios derive the required mathematical model in the form of a differential…

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Q: In the circuit, the capacitor is fully charged when switch ?S is closed. Calculate the time needed…

A: Energy stored in the inductor UL = 12Li2                Energy stored in the…

Q: What is the inductance of the circuit?

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Q: A high-intensity desk lamp is rated at 45 W but requiresonly 12 V. It contains a transformer that…

A: Power, P=45 W  Voltage in secondary, Vs = 12 V  Voltage in primary, Vp=120 V

Q: A 1000 turn coil is moved from a location where there the magnetic field is 25.00 T to a location…

A: Number of turns (N) = 1000 Magnetic field at first location = 25 T Magnetic field at second location…

Q: A transformer has 20 turns of wire in its primary coil and 80 turns on its secondary coil. (a) Is…

A: Given : Number of turns in primary coil (Np) = 20 Number of turns in secondary coil (Ns) = 80…

Q: A coil has an Inductance of 50μH. What voltage is induced across the coil when the rate of change of…

A: Given, Inductance of coil, L = 50 μH rate of change of current, dIdt = 10000 As

Q: A solenoid 50 cm long is wound with 500 turns of wire. The cross-sectional area of the coil is 2.0…

A: The expression for the self inductance of solenoid, L=μ0N2Al                 (I)…

Q: A magnet and a coil are oriented as shown. The magnet is moved rapidly into the coil, held…

A: The magnet is moved rapidly into the coil, in this case the positive current is induced, due to the…

Q: a step down transformer has an output of 12v and .5A when connected to a 120V line. assume no…

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Q: A solenoid 46.6 cm long is wound with 175 turns of wire. The diameter of the solenoid is 4.17 cm.…

A: Given: length of solenoid l=46.6 cm =0.466 m number of turns N=175 diameter of wire d=4.17 cm =…

Q: A machine uses a step-up transformer where a 110V input is converted to 220V output Calculate the…

A: Given data: Primary voltage, Vp=110 V Secondary voltage, Vs=220 V Number of turns in primary coil,…

Q: A transformer with 1500 turns in the primary and300 turns in the secondary is used to réduce the…

A: number of turns in primary coil = N1= 1500 number of turns in secondary coil = N2= 300 voltage in…

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 data The emf induced in the coil is given as ε=0.40 V . The initial flow of current is Ii =…

Q: A bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. It has a 1.00 by 3.00 cm…

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Q: The mutual inductance between two coils is 3.25 mH. A changing current in the primary coil resulted…

A: Given data: Mutual inductance of the coil L =3.25mH Current I =5.45mA Resistance R =9 ohms

Q: A generator has a 100-turns coil that rotates in a 0.30-T magnetic field at a frequency of 80 Hz,…

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Q: A rectangular circuit containing a resistance R is pulled at a constant velocity v → away from a…

A: Write the expression for induced EMF in the circuit in the terms of rate of change of flux. The…

Q: Which of the following represents the variation of current and inductance of inductor? D O a. A O b.…

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Q: Q2. Coil Solenoid In figure, a 120turn coil of radius 1.8 cm and resistance 5.3 ohms is coaxial with…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: An inductor with inductance L = 0.4H carries a current of 1A. Calculate the potential energy stored…

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Q: 4.) In the circuit shown, the initial voltage across the 10 microFarad capacitor is 12V.  The…

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Q: Two coils are placed side by side. An emf of 0.8 V is observed in one coil when the current is…

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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.