At t=0: coil plane is parallel to B Rectangular coil of 200 windings S N S N 5 cm 10 cm B = 2T

Q: A magnetic field has a magnitude of 0.0818 T and is uniform over a circular surface whose radius is…

A: Given data:  Magnitude of magnetic field (B) = 0.0818 T Radius (r) = 0.291 m Angle (θ) = 29.1°…

Q: 200-mA current flows in a small solenoid which stores 20 μJ of magnetic energy. The inductance of…

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Q: 3. Currents I₁ = 10.0A and I2 = 15.0A are flowing through two conductors as shown in the Figure.…

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Q: Given a solenoid with 4 turns. A magnet is dropped through the middle of the solenoid, and this…

A: (1) induced emf

Q: A hollow cylindrical (inner radius = 1.0 mm, outer radius = 3.0 mm) conductor carries a current of…

A:

Q: A metal bar 4.9N2.7 min length rests horizontally on conductive wires that connect it to the…

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Q: 3. A wire is moving on frictionless rails in a uniform magnetic field, as shown to the right. The…

A: We have a wire of length L=5 cm=0.05 m which is moving along a rail experiencing a magnetic field of…

Q: If a = 2.0 cm, b = 5.0 cm, and I = 20 A, what is the magnitude of the magnetic field at the point P?…

A: a = 2 cm b = 5 cm I = 20 A

Q: R D 21 3 What magnetic field B will the given circuit element produce at the center of the circle? A…

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Q: solenoid has the following dimensions. inner diameter d = 5.12 cm length L = 46.7 cm When a current…

A: Given : d = 5.12 cm = 0.0512 m L = 46.7 cm = 0.467 m B = 5.40 T

Q: 00 wire loops are wound together. The area of each is 0.0025 m2. The loops begin with the area…

A: Using the concept of electromagnetic induction,

Q: loop of wire with radius r = 0.079 m is in a magnetic field of magnitude B as shown in the figure.…

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Q: A uniform magnetic field passes through a surface of area A as shown in the figure. If the area…

A: The magnetic flux through an area A is, ΦB = BA cosα B = magnetic field A = area α = angle between…

Q: You have a solenoid with an initial current of 386 A and a turn density of 6088 loops. m What the…

A: The induced emf at the center of the solenoid is 4440 V. Write the expression for Ohm's law and…

Q: 2. A magnetic ficld is given by B an expression for the magnetic flux through a square of side 2xo…

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Q: An ideal solenoid with 100 turns has a radius of 0.020 m and is 70 cm long. If this solenoid…

A: The given data we have: Turns of coil in the solenoid: 100 Radius of the solenoid: 0.020m Length of…

Q: 1.  a. What will be the direction of the current in the wire just above the bar magnet when you…

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Q: 2. A 22 cm by 35 cm rectangular coil has a single turn and carries a current of 1.4 A. Initially the…

A: Given, Rectangular coil  a=22cm b=35cm Current I=1.4A Magnetic field B= 1.6T

Q: A circular coil is made of 130 turns of wire. The enclosed area of the coil is 9.0 x 10 m². The…

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Q: A magnetic field directed into the page changes with time according to B = 0.055 0t² + 1.40, where B…

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.