A 60.0-m length of insulated copper wire is wound toform a solenoid of radius 2.0 cm. The copper wire has a radiusof 0.50 mm. (a) What is the resistance of the wire? (b) Treatingeach turn of the solenoid as a circle, how many turns canbe made with the wire? (c) How long is the resulting solenoid?(d) What is the self-inductance of the solenoid? (e) If the solenoidis attached to a battery with an emf of 6.0 V and internalresistance of 350 mΩ, compute the time constant of the circuit. (f ) What is the maximum current attained? (g) Howlong would it take to reach 99.9% of its maximum current?(h) What maximum energy is stored in the inductor?

Q: A solenoid of a radius R wound with n turns per unit lengthcarries a current given by I = I0e −βt,…

A: The magnetic field due to solenoid is,

Q: A square conducting loop is in a region of uniform, constant magnetic field. Can the loop be rotated…

A: Can the loop be rotated about an axis along one side and no emf be induced in the loop?

Q: An aluminum ring of radius r₁=5.00 cm and a resistance of 3.55 x 10-4 is placed around one end of a…

A:

Q: If 50.0 cm of copper wire (diameter = 1.00 mm) isformed into a circular loop and placed…

A:

Q: Find the flux of Earth’s magnetic field of magnitude 5.00 × 10−5 T through a square loop of area…

A:

Q: A long solenoid with a circular cross section has n turns per unit length and radius R. The current…

A: step-1*A long solenoid with circular cross-section hes 'n' turns per unit length.*The current…

Q: Suppose that a rectangular toroid has 2000 windings and a self-inductance of 0.040 H. If h = 0.10 m…

A: Using the energy stored in an inductor, U=12LI2I=2UL

Q: The current in a long solenoid of radius 7 cm and 17 turns/cm is varied with time at a rate of 6…

A:

Q: An aluminum ring of radius r = 5.00 cm and a resistance of 4.15 x 104 N is placed around one end of…

A: Due to magnetic field of solenoid the current is induced .

Q: A solenoid of length 0.700m having a cirular cross-setion of radius 5.00m stores 6.00 μJ of energy…

A:

Q: The figure shows two parallel current-carrying conductors with currents A = 8.0 A and h = 5.0 A. For…

A:

Q: For a class demonstration, a professor needs to create a solenoid using copper wire with diameter d…

A:

Q: In the August 1992 space shuttle flight, only 250 m of theconducting tether considered in Example…

A: Given: The length of the conducting tether is 250 m. The strength of the magnetic field is 5x10-5 T.…

Q: What is the energy density at the center of a circular loop of wire carrying a 26.0 A current if the…

A:

Q: An aluminum ring of radius r1 = 5.00 cm and resistance 3.00 x 10-4 V is placed around one end of a…

A: Given Data: The radius of the aluminum ring is, r1=5.00 cm The radius of a solenoid is, r2=3.00 cm…

Q: A circular conducting disc or radius g is rotating around its axis with an angular velocity w rad/s…

A:

Q: ESS 2 2 SE 16 s SES-ES ESESESES STA ES STA ES STA ES Arod AB with length L ellism is lying on a…

A: (a)Write the expression for total induced emf across the rod AB.

Q: A long, cylindrical solenoid with 100 turns per centimeter has a radius of 18.7 cm. If the current…

A:

Q: Q.A) A constantan wire of length 12 m and having a cross sectional area 1.4x104 m? is converted into…

A:

Q: Determine the current I flowing through a solenoid, if the magnetic flux inside its core is found to…

A: The magnetic flux in the coil can be determined as, Here, B and A represent the magnetic field and…

Q: It is desired to construct a solenoid that will have a resistance of 2.69 ohm and produce a magnetic…

A: Given: Resistance of solenoid: R=2.69 [Ω] Magnetic field: B=4×10-2 [T] Current:  3.71 [A] Diameter…

Q: The magnetic field shown in the diagram is oriented perpendicular to the loop and is described by…

A: Recall ϕ=magnetic flux=BAdϕ/dt is rate of change of flux. Here A is area of loop which is constant.…

Q: The current flows in the horizontal straight wire is i= ct + dt. For the numerical values given…

A:

Q: A square loop whose sides are 6.0-cm long is made with copper wire of radius 1.0 mm. If amagnetic…

A: Given : L = 6 cm = 0.06 m r = 1 mm = 0.001 m dB/dt = 5 mT/s = 0.005 T/s

Q: A cylindrical solenoid with radius 1.00 cm andlength 10.0 cm consists of 300 windings of AWG 20…

A: Given: Radius of cylindrical solenoid, r = 1 cm = 1 X 10-2 m Length of solenoid,l = 10 cm = 0.1 m…

Q: A 40.0-mA current is carried by a uniformly wound air-core solenoid with 450 turns, a 15.0-mm…

A:

Q: The magnetic field in the region between the poles of an electromagnet is uniform at any time, but…

A:

Q: A rectangular loop of length l and width w is at a distance r from a long wire carrying current I.…

A: Answer: Option a is correct.

Q: The clockwise circulating current in a solenoid is increasing at a rate of 8 A/s. The cross-…

A: di/dt=8 A/s. Area=3.14159 cm² n=229 L=22.6 cm

Q: The radius of the circle forming a coil of N=105 turns is given as r=4.3cm. The coil is placed in…

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Q: Consider the magnetic circuit in the following figure. Assuming that the core (µ, = 2000) has a…

A: Given: Current through coil, Relative permeability of coil, No. of turns, Area of cross-section,…

Q: Show that the magnitude of drift velocity V of charge carriers in a conductor of thickness d, placed…

A: We know that the Hall potential, VH=E=IBned                                             (1) The…

Q: A square loop of wire with a single turn and side l = 1.0 cm is placed inside a solenoid that has a…

A: Induced emf ε=-dϕdt=-ddtBA=-Addtμ0NIl=-a2ddtμ0NI0cosωtl=μ0a2NI0sinωtl

Q: A square, single-turn wire loop, l = 1.00 cm on a side is placedinside a solenoid that has a…

A: Given:Current in the coil = 3 ANumber of turns = 100Length of the coil = 0.2 m

Q: The current in a long solenoid of radius 7 cm and 17 turns/cm is varied with time at a rate of 6…

A:

Q: For a technical application, an electrical engineer needs to create a solenoid using copper wire…

A:

Q: An az oriented solenoidal coil with 1000 turns per meter has a diameter of 2 cm and is 20 cm long.…

A: Required : Current required to hold the iron bar to not fall.

Q: A closely wound solenoid of 2000 turns has an axial length of 64 cm and a radius of 2.50 cm. When…

A: The formula for magnetic flux density or magnetic field is given by  B = μ0nI = μ0NI /H where μ0 =…

Q: A rectangular conducting loop is placed on a flat surface, with the longer sides parallel to a…

A:

Q: An aluminum ring of radius r, = 5.00 cm and a resistance of 3.65 x 10-4 2 is placed around one end…

A:

Q: A 50cm long solenoid, having 500 turns and radius 2cm ,is wound on an iron core of relative…

A: Length of solenoid: l = 50 cm = 0.50 m Number of turns : N = 500  Radius of solenoid; r = 2 cm =…

Q: An aluminum ring of radius 5.00 cm and resistance 3.00 x10-4 Ω is placed around the top of a long…

A:

Q: Suppose that a rectangular toroid has 2000 windingsand a self-inductance of 0.040 H. If h = 0.10 m ,…

A: Given Data: The number of winding is, N = 2000. The self inductance is, L=0.040 H. The height is, h…

Q: A coil is placed in a magnetic field and has a flux ΦB through it. The coil is stressed so that its…

A: As flux remains same therefore, B1A1 = B2A2 B2 = B1A1/A2

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.