A steady current of 4.5 generates a flux of 2.3 x 10 -5Wb in a coil with 550 turns. Compute the self –inductance of the coil.

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

A:

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…

A:

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

A: The rate of change of current,

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

A:

Q: A coil having 50 turns and an outer and inner diameter of 3cm and 2 cm respectively swings from a…

A:

Q: What is the inductance of a coil if the coil produces an emf of 2.86 V when the current in it…

A:

Q: a 2.63 m -long coil containing 225 loops is wound on an iron core (average μ=1850μ0) along with a…

A:

Q: A solenoidal coil with 25 turns of wire is wound tightly around another coil with 310 turns. The…

A:

Q: steadily from 1.3A to 2.5A in the opposite direction,in 0.12 s. The average emf induced in the coil…

A:

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

A:

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 10 A to zero in 0.50 s. If the average induced e.m.f is 320 V,…

A: (a) The average induced e.m.f. VL is given by: VL=-Ldidtdidt=0-10.5=-20 a/sL=-VLdidt-1=320/20=16…

Q: n inductance of 3 H and a wire resistance of 15 Ω. How long will it take for the current to reach…

A: GivenL=3 HR=15 Ω

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 transformer consists of two coils of wire wound on a common toroidal iron core. The mutual…

A:

Q: A coil has an inductance of 3.00 mH, and the current through it changes from 0.200 A to 1.50 A in a…

A: When magnetic flux linked with a coil changes then emf get induced in the coil according to Lenz's…

Q: What is the inductance of a coil if the coil produces an emf of 2.40 V when the current in it…

A: Given:-  The emf of the coil  = 2.40 V  The current change from I1= -28.0 mA to I2= +32.0 mA  Time…

Q: A toroidal solenoid has 550 turns, cross-sectional area 6.40 cm^2, and mean radius 4.60 cm. Part A…

A: Given information: Here, N is the number of turns of the toroidal solenoid, A is the…

Q: A toroidal solenoid has 500 turns, cross-sectional area 6.25 cm2, and mean radius 4.00 cm. (a)…

A: (a) Write the formula for the self-inductance of the rectangular toroid.

Q: Let say that a flat coil of wire, having 5 turns, has an inductance L. Then the inductance of a…

A: For any coil of wire the inductance is given by the following formula : L = µN2A / l µ refers to the…

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: 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: A coil is connected in series with a 11.9 kΩ resistor. An ideal 59.5 V battery is applied across the…

A:

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: A 5.00 [cm] long solenoidal inductor has 50 turns and radius of 3.00 [cm]. If the current varies at…

A:

Q: Consider a coil with 950 loops that is pulled in-between magnetic poles in 0.12 s. The coil…

A:

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: The current through a coil as a function of time is represented by the equation I(t) = Ae sin(wt),…

A: Induced emf due to the varying current in the first coil…

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

A:

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: Measurements on a solenoid coil (inductor) at a particular instant in time indicate that the current…

A:

Q: A flat circular coil having 120 turns. each one of cross-sectional area 0.028 m, is in a uniform and…

A: Number of turns, N = 120  Area, A = 0.028 m2  Magnetic field, B = 0.25 T  time, t = 5 ms

Q: What is the mutual inductance of two coils if an average electromotive force of 0.15 V was induced…

A:

Q: A coil has an inductance of 50 mH and a resistance of 0.24 Q. A 12V emf is applied across the coil.…

A: The RL circuit consists of the Resistance and Inductance connected in series. The voltage difference…

Q: A 2.5 m long coil containing 250 loops is wound on an iron core (average u = 1850µ.) along with a…

A:

Q: Suppose we have a rectangular loop S, made by a conducting material with Ny = 56 turna and length,…

A: The student  asked to answer only (h)

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

A:

Q: Calculate the inductance (H) of an air cored coil that has a length of 11 cm, a core with…

A:

Q: A voltage of 0.35 V is induced across a coil when the current through it changes uniformly from 0.1…

A:

Q: A toroidal solenoid has 800 turns, cross-sectional area of 16.25 cm^2, and an average radius of…

A: Number of turns in the toroid, N=800  The cross-sectional area of the toroid, A=16.25 cm2 The…

Q: A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0…

A:

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

A: Induced emf is given by Lenz's law which states that E=-LdIdt

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.