(III) A physics professor wants to demonstrate the large sizeof the henry unit. On the outside of a 12-cm-diameter plastichollow tube, she wants to wind an air-filled solenoid withself-inductance of 1.0 H using copper wire with a 0.81-mmdiameter. The solenoid is to be tightly wound with each turntouching its neighbor (the wire has a thin insulating layeron its surface so the neighboring turns are not in electricalcontact). How long will the plastic tube need to be and howmany kilometers of copper wire will be required? What willbe the resistance of this solenoid?

Q: A solenoid of radius 3.5 cm has 480 turns and a length of 15 cm. (a) Find its inductance. mH (b)…

A:

Q: How would you place two identical flat coils in contact so that they had the greatest mutual…

A: Given:  Two coils

Q: Discuss the factors determining the induced emf in a closed loop of wire.

A:

Q: Identify the statement from the following when the inductance can have high value. O a. If the…

A: Is from above formula of inductance, inductance is directly proportional to turns of wire and cross…

Q: The self-inductance of a solenoid increases under which of the following conditions?

A: When an electric current is passed through a solenoid, a coil of insulated wire wound on a…

Q: 11. (II) What is the direction of the induced current in the circu- lar loop due to the current…

A: We have given four figure in given diagram. Lenz law Lenz law based on the conservation of energy…

Q: The wire of a tightly wound solenoid is unwound andused to make another tightly wound solenoid of…

A: The mathematical expression for the inductance is given as  L=μ0N2Al Here, μ0 is the permittivity of…

Q: Would the self-inductance of a 1.0 m long, tightly wound solenoid differ from the self-inductance…

A:

Q: If the emf of the battery of Figure 14.12 (b) is reduced by a factor of 2, by how much does the…

A: The inductor’s energy can be given as, Here, L and I represent the inductor’s inductance and…

Q: Current is i nduced in a conductina loop that lies in a Zontal plane, t the induced Current is…

A: According to Lenz's law Induced emf always opposes the cause by which it is produced

Q: uhew many furns are there the primary ríde coil ey the 6) If the seeondary side rme Current fs rms…

A: Given data: Primary voltage, Vp=120 V Secondary voltage, Vs=6 V Number of turns in secondary coil,…

Q: How can we calculate the self inductance of a solenoid?

A: Solenoid is a device made by a coil of wire.

Q: When the 20.0 A current through an inductor is turned off in 1.50 ms, an 800 V emf is induced,…

A:

Q: What would be the effect on B inside a long solenoid if(a) the diameter of all the loops was…

A: a) The magnetic field strength is not affected if the diameter of the loops doubles. ... (b) If the…

Q: 6.6 Assume a nonlinear magnetization curve for a current transformer. Show that a percentage…

A: The percentage differential relay is defined as the relay that operates on the phase difference of…

Q: half O A tectangular conducting loop has its left in a magnetic field directed into the page. S…

A: when we increase the magnetic field in the page so Loop pused itself on the right side because it…

Q: Does inductance depend on current, frequency, or both? What about inductive reactance?

A: The inductance, L,  of an inductor depends upon its make and it is independent of the current as…

Q: How does the self-inductance per unit length near the center of a solenoid (away from the ends)…

A: The expression for the self inductance , L=μN2Al

Q: A 24-V battery is connected in series with a resistor and aninductor, with R = 8.0 Ω and L = 4.0 H,…

A: Formula to calculate current at any time in a circuit is,

Q: How can one increase the strength of induced current?

A: There are two ways to do that : Strength of induced current increased when strength of magnetic…

Q: Point with magnetic induction of 7.3uT is at distantance 88cm from the centre of infinitely long…

A: magnetic field due to infinite wire is  B=u0i2πr i=B2πRu0

Q: An RL circuit with a 5-Qresistor and a 0.05-H inductor carries a current of 1 A att= 0, at which…

A: Given: An RL circuit contains resistor, R=5 Ω and inductance L= 0.05 H Current at t=0, I(0)=1 A…

Q: If a copper coil is wound 30 times, determine the solenoid's magetic flux if it produces 45 henries…

A: The solenoid’s magnetic flux can be determined as, Here, L, I and N represent the self inductance…

Q: Determine the self-inductance of a toroidal solenoid with crosssectional area A and mean radius r,…

A: Let the magnetic field is given by B. Let the length element is given by dl. Let the no of turns is…

Q: Why will there be no induced current for the second item?

A: Induced current due to magnetic field

Q: 1/7he Coessicient of mutuel incluctance betheen twothansformmer Windings is ay Hi 1ş the equefion of…

A:

Q: How fast can the 160 A current through a 0.260 H inductor be shut off if the induced emf cannot…

A: Current , I = 160 A Inductor , L = 0.26 H Induced emf = 73 V To find = Time taken

Q: 9: A SOV baltery is Conneclteed Co a series tonnected cincujl in eshich inductance is 0.Shenrry aud…

A: Given:- The Series RL circuit in which R = 20 Ohm  The Voltage V = 50 V  Inductance = 0.5 H  Find:-…

Q: (II) At t=0 the current through a 45.0-mH inductor is50.0 mA and is increasing at the rate of 115…

A:

Q: nagnet in the previous question is now plunged into a coil that has tu v, the induced current in the…

A: Thus emf induced is proportional to rate of change of magnetic flux.

Q: A step-up transformer increases voltage, or potential energy per unit charge. Howis this possible…

A: A transformer with more secondary windings than primary winding, so that it can increase voltage…

Q: Can there be an induced emf in a circuit at an instant when the magnetic flux through the circuit is…

A: Faraday's Law gives us the concept of the induced emf being equal to the rate of change of magnetic…

Q: How would you shape a given length of wire to give it the greatest self-inductance? The least?

A: The expression for the self inductance is,

Q: If a diamagnetic material is introduced into a solenoid that is carrying current I, what happens to…

A: We have to explain what happened to the energy stored here...

Q: . How would you arrange two flat circular coils so that theirmutual inductance was (a) greatest, (b)…

A: The mutual inductance between two circular coils can be given as, Here, ϕ21, μ0, N1, N2, A, l, and…

Q: How many turns should a coil of an inductor is needed in a low pass filter with a cut-off frequency…

A: The resistance in the circuit R=8 Ω The cut-off frequency f =500 Hz The equation for cut off…

Q: Inte Circuit nelow, the switch is initially open(sushere is no Current), he close the swriten at t…

A: R1 = 1.8 ohm R2 = 2.3 ohm R3 = 1.4 ohm R4 = 5.2 ohm E = 6 volts

Q: A single loop is made around the center of a solenoid with a length of 20 m and a radius of 5m. How…

A: Given  Length of solenoid, h = 20 m  Radius of solenoid,R = 5 m  Mutual inductance, L = 1 Henry  No…

Q: In a homopolar motor (like Faraday’s motor), what happens to the motion if the current is reversed?

A: A Homopolar motor  is a direct current electric motor with two magnetic poles .The name Homopolar…

Q: Help A V = 86-V source is connected in series with an R = 1.8-kΩ resistor and an L = 28-H inductor…

A: Given an RL circuit A voltage source of V=86V A resistor of resistance R=1.8KΩ=1800Ω A inductor of…

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.