1 P dx (r2 + x?)3/2 k

Q: A coil with magnetic moment 1.50 A x m2 is oriented initially with its magnetic moment anti parellel…

A: Magnetic moment, µ = 1.5 A.m2Magnetic field, B = 0.805 TSince the magnetic moment is initially…

Q: A conducting bar of mass m = 1kg and length l = 1m is in contact with a thin conducting circular…

A:

Q: A very tong hollow cylindrical coil with across- Sectional area of 7ocm and the number oe turns Per…

A: Energy stored in a coil = (1/2) LI2  L = self inductance I = instantaneous current

Q: When the N end of a magnet moves towards a loop of wire from the left, the wire loop experiences an…

A: According to the Len'z law the induced emf in the coil under changing magnetic field is such that it…

Q: A conducting rectangular loop of mass 0.60kg, resistance 40 Ω, and 2.0m wide is allowed to fall from…

A:

Q: Suppose you wish to produce a 2-T magnetic field in a toroid with an iron core for which magnetic…

A: The mean radius of the toroid r=18 cm=0.18 m The number of turns n=400 turns The magnetic field in a…

Q: A space station is travelling eastward at a speed of 6.60 x 103 m/s. It is in orbit where the…

A: speed, v = 6.6 x 103 m/s  Magnetic field, B = 1.7 x 10-4 T  length, L= 2.5 km

Q: A conducting bar of mass m = 1kg and length l = 1m is in contact with a thin conducting circular…

A: Given that, m = 1 , L = 1 , B = 1 T, R = 1 ohm By torque balance on rod about center point, Fb*(L/2)…

Q: Loop moving into a Constant Magnetic Field. Consider a square loop with side length 1m moving at a…

A:

Q: Attached photos show three circuits consisting of concentric circular arcs (either half or quarter…

A: The correct answer is option (B) 3, 2, 1

Q: 15) A metal bar with length L = 0.80 m ,mass m 100 gram, and resi stan ce R = 10 N is placed on…

A:

Q: A conducting bar of mass m = 1kg and length l = 1m is in contact with a thin conducting circular…

A: Given that, m = 1 , L = 1 , B = 1 T, R = 1 ohm By torque balance on rod about center point, Fb*(L/2)…

Q: What is the work done when a bar magnet of dipole moment μ = 10 A.m2 and initially aligned with a…

A: μ = 10 A.m2  magnetic field, B =  0.5 T Angle, A = 30 degree

Q: A solid conducting fly-wheel 1.6 m in diameter, is revolving on a horizontal axle which lies in the…

A:

Q: Suppose that the Earth's magnetic field (BE) in a given region is parallel to Earth’s surface,…

A: Question :      Suppose that the Earth's magnetic field (BE) in a given region is parallel to…

Q: Two identical, flat, circular coils of wire each have 110 turns and radius R = 0.500 m. The coils…

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Q: The magnetic field at the center of a circular coil can be increased by: Select one: O reducing the…

A: Magnetic field due to a current carrying circular coil, having n turns, at its centre depends on:…

Q: Two concentric coplanar semicircular conductors form part of two current loops as shown in the…

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Q: A flat circular coil of wire with diameter of 5.00 cm has 10 turns and carries a current of 1.25 mA.…

A:

Q: A current carrying coil is placed in a uniform magnetic field. If the coil turns through an angle 0,…

A: We know that M = NIA  Where M is the magnetic moment of the loop  N is the number of turns of the…

Q: A rigid circular loop has a radius of 0.2 m and is in the xy-plane. A clockwise current I is carried…

A:

Q: A long rectangular conducting loop is hung in a uniform magnetic field B that is directed into the…

A: We know that emf induced in moving coil in magnetic field is given by  e=Bvl and current induced…

Q: A 136 turn circular coil of diameter 52 cm is placed in the earth's magnetic field 0.4 G, such that…

A: The magnetic dipole moment is a vector variable related to the magnetic characteristics of electric…

Q: A straight conductor of length l moves with an acceleration a = 0.1 ms−2 at right angles to a…

A: The given data are: a=0.1 m/s2B=10 TV=5 Vt=20 s Here, a denotes the acceleration, V denotes the emf,…

Q: A conducting rod is free to move along 2 parallel conducting rails. On one end a resistor, R,…

A: Sketching the figure of the situation:

Q: You have a wire of length L = 0.9 m for making a square coil of a dc motor. The current in the coil…

A: Given: The length of the loop is 0.9 m. The current in the wire is 0.8 A. The strength of the…

Q: In the demonstration where a magnetic north pole is brought near a loop, which is true about the…

A:

Q: A single-turn square loop of wire, 2.00 cm on each edge, carries a clockwise current of 0.230 A. The…

A: Answer:-  Given  Length of each side of the loop(L) =2.0 cm =  2 × 10-2 m  Current in loop(I1) =…

Q: You have a square loop with each side of length 'a' and a circular loop with radius 'a'. Both of…

A:

Q: A magnetized sewing needle has a magnetic moment of 9.70 μA ⋅ m2. At its location, the Earth’s…

A: The magnetic moment of the sewing needle is 9.70 μA.m2, the angle of the sewing needle is 48.0° and…

Q: A generator connected to the wheel or hub of a bicycle can be used to power lights or small…

A:

Q: Two identical coaxial circular coils carry the same current I in the same direction. The magnitude…

A: From Biot-Savart's law, B on the axis of circular coil is: B=μ0nIR22R2+x232 Direction of B is given…

Q: Two identical coaxial circular coils carry the same current I but in opposite directions. The…

A: Answer: a) Zero Explanation: Consider the given situation in the following figure. Here, C1, and C2…

Q: Two identical coaxial circular coils carry the same current I in the same direction. The magnitude…

A: Consider two coils 1 and 2 of radius R, placed coaxially to each other. The figure for the given…

Q: As shown in the figure, a metal bar of length l= 0.25 m is free to slide on frictionless rails. A…

A:

Q: A 292 turn circular coil of diameter 54 cm is placed in the earth's magnetic field 0.42 G, such that…

A:

Q: Consider a circular current-carrying coil with a radius of 2.5 cm and 150 turns that may rotate…

A:

Q: A 232 turn circular coil of radius 50 cm is placed in the earth's magnetic field 0.53 G, such that…

A: Magnetic moment of the coil is, M = N*I*A Where, N is the number of turns, I is the current flowing…

Q: A 136 turn circular coil of diameter 52 cm is placed in the earth's magnetic field 0.42 G, such that…

A: a) The magnetic dipole moment of the loop is given by: m =nIAI = current, A= area, n = number of…

Q: A conducting rod moves on two frictionless, parallel rails in a regionwhere a uniform magnetic field…

A: The given equation is : To find = which are correct options about the distance it takes before it…

Q: A long solenoid of diameter dand number of windings n per unit length is cut open along its length…

A: Given : Arrangement of wires connecting two  metal sheets. Required : Magnetic field due to the…

Q: A 148 turn circular coil of radius 54 cm is placed in the earth's magnetic field 0.4 G, such that…

A:

Q: A 304 tum ciraular coil of radius 32 am is placed in the earth's magnetic field 0.35 G. such that…

A: Number of coils   N = 304 Radius of coil       R = 0.32 m Earth's magnetic field  B = 0.35 G =…

Q: If number of turns (N), area (A) and magnetic field (B) have same value for a square and circular…

A: 1. According to the given question ,  N be the number of coils, A be the number of areas of the…

Q: In the Magnetic Field experiment, the angle between the resultant field at the center of the and the…

A: Let B le the magnetic field due to the current loop,  And B1 is the earth magnetic field  And ¥ ist…

Q: A generator connected to the wheel or hub of a bicycle canbe used to power lights or small…

A: Explanation for Part a:

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.