An emf of 5.7 x 10 v is induced in a coil while the current in a nearby coil is decreasing at a rate of 1.7 A/s. Wwhat is the mutual inductance of the two coils (in H)? 9.60E-3 X H

Q: An emf of 0.60 V is induced across a coil when the current through it changes uniformly from 0.30 to…

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Q: The current in a coil drops from 3.5 A to 2.0 A in 0.50 s. If the average emf induced in the coil is…

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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: 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: The resistance of a coil is 52 0. When the frequency is 80 Hz, the voltage on the coil is 72,3°…

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Q: A 20.0 V emf is applied to a coil with an inductance of 40.0 mH and a resistance of 0.500 Ω. a)…

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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: 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: 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: The self-inductance of a coil is 50 mH. What is the emf induced when the current in the coil…

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Q: A coil produces an emf of 1.50 V when the current in it changes from -12.0 mA to +32.0 mA in 4.00…

A: According to the laws of electromagnetic induction, the induced emf is given by  e = L d Id t where,…

Q: An inductor has a current I(t) = (0.500 A) cos[(275s-1)t] flowing through it. If the maximum emf…

A: An inductor is a passive electrical device which stores energy in a magnetic field when current is…

Q: A long solenoid has n=900 turns per meter and a current ? = 3.2 sin(??). Inside the solenoid with a=…

A: n= 900 turn , a= 0.5 m Nc= 100 turns, b= 0.2 m I= 3.2 sin wt

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 coil is connected in series with a 10.0 k resistor.An ideal 50.0 V battery is applied across the…

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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: A coil with a self-inductance of 2.0 H carries a current that varies with time according to I(t) =…

A: The expression for find induced emf in the coil is ε=-LdIdt

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 current i(t) = (2A/s)t flows through a conducting coil which results in an emf of 5 = -6V.What is…

A: solution as

Q: Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at…

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Q: Two coils connected as shown in the figure separately have inductances L1 = 34 mH and L2 = 50 mH.…

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Q: 5.5 A hollow air cored inductor coil consist of 500 turns of copper wire which produces a magnetic…

A: We know that  Magnetic flux = self inductance × current  Here,  Magnetic flux = 10 m Wb  Current =…

Q: An emf of 0.70 V is induced across a coil when the current through it changes uniformly from 0.45 to…

A: Given data:  Emf (e) = 0.70 V Initial current = 0.45 A Final current = 0.55 A Time (t) = 0.40 s…

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: The inductance of a closely wound coil is such that an emf of 3.00 mV is induced when the current…

A: The equation for the inductance of the coil can be obtained as Substituting the values gives the…

Q: 9. An inductor carries a current of 2.5 A, and the magnetic energy stored in the inductor is 0.0035…

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Q: 8) The resistanoe of a coil is 540. When the frequency is 80 Hz, the voltage on the coil is 75,3…

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Q: As current stabilizes in the inductor at 10A over 0.1 seconds, how much is the induced emf in the…

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Q: The inductance of a closely packed coil of 400 turns is 6.5 mH. Calculate the magnetic flux (per…

A: The coil with 400 turns can be considered as a solenoid. The expression for inductance of a solenoid…

Q: Two coils have a mutual inductance of 2.34 x 10 H. The current in the first coil increases at a…

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Q: Two coils, 1 and 2, are separated in space, and have a fixed distance between them. When coil 2 has…

A: Given -  Rate of increase of current in coil -1,   di1/dt  = 24.0 A/s EMF induced in coil -2 due…

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: How many turns of wire are needed to produce an inductance of 100 mH if the length of the coil is 30…

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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 loop of wire has a self-inductance of 5.5 mH.  You pass a current of 9.0 Amps though the loop, and…

A: Given Self- Inductance of loop                                    ( L) = 5.5 mH = 5.5 × 10-3 H…

Q: The current through a coil as a function of time is represented by the equation I(t) = Ae-bt…

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Q: 1 A circuit shown consistsof threeSiis of inductanceś 1.0 H each and a 1.0 pF capacitance. At an…

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Q: A coil with a self-inductance of 3.0 H carries a current that decreases at a uniform rate dI/dt =…

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Q: The current in a coil decreases from 9.0 A to 5.5 A in 0.30 s. If the average emf induced in the…

A: Solution: given that current in a coil decreases from 9.0 A to 5.5 A in 0.30 s emf  = 25 mV

Q: A steady current of 5 A is flowing through an inductor with 90 volts across it. Find (a) Inductance…

A: In the given question given that, current flowing through the inductor is 5amp and and voltage…

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

A: The relation between magnetic flux (Φ21) and mutual inductance (M) is given by- M=N2Φ21I1Here,N2 is…

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.