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: A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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

A:

Q: A 25.0 [cm] rod moves 5.00 [m/s] and is immersed in a magnetic field with strength of 0.50 [T]. The…

A: Given : L = 25 cm = 0.25 m v = 5 m/s B = 0.50 T θ = 90° (because length, velocity and magnetic field…

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: The conducting bar in the figure is 0.1 m long and moves to the right with a speed of 10 m/s across…

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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: Given values: inner radius d1 = 1.0 mm inner radius d2 = 3.0 mm distance at which the magnetic field…

Q: A long solenoid is wound with 960 turns per meter of thin wire through which a current of 17.2 mA is…

A:

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…

A:

Q: A uniform magnetic field of 8.8 x103 T passes through a single loop rectangular coil of dimensions…

A: The magnetic flux is given by  ϕ= B A cosθ where, B is the magnetic field, A is the area and θ is…

Q: A 6.0 H coil whose resistance is 120 is connected in series with a 24 Q resistor and to a 144 V…

A: Given: L= 6.0 H resistance of coil = 12 ohm resistance of resistor = 24 ohm voltage applied V = 144…

Q: Calculate the energy associated with the magnetic field of a 400-turn solenoid in which a current of…

A: Number of turns (N) = 400Current (I) = 1.75 A Magnetic flux = 3.7×10-4 Wb in each turn

Q: 5. The semiciroular wires forming the loop in the diagram have radii a - 20.0 cm and b = 40.0 cm.…

A: a = 20 cm = 0.2 m b = 40 cm = 0.4 m Current (I) = 3.183 A

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…

A:

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

A: option (c) is correct.

Q: Tho currents shown in the figuro are n 16.00 A, 12= 9.00 A, and 13 20.00 A. The line intogral of…

A: Solution:            Current           I1= 16.00 A                                    I2  = 9.00A…

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: A charged ball moves in a circular path at a constant speed. The time required for the charge to…

A: Given, The time period is qμx

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

A:

Q: A lengthy wire carrying current is wrapped in an Amperian loop in a circular pattern. The wire is…

A: Given, Current in wire is I  Wire is tilted at an angle θ

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: A current of 0.10 A flows through a rectangular 100-winding current loop with dimensions 0.4 m and…

A: Current (i) = 0.10 A Number of windings (N) = 100 Dimensions = 0.4 m and 0.3 m Area (A) = 0.4×0.3…

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: A conducting bar moves with a speed v= 18.5 m/s along parallel frictionless conducting rails…

A:

Q: What is the direction of the induced current if the B field suddenly increases (pointing out of…

A: 1) The increasing magnetic field is out of the page. So, it must be encountered by induced flux into…

Q: A long straight wire with circular cross section and radius Rcarries current with density J = Br…

A: According to Ampere's law the line integral of magnetic field around a closed loop is proportional…

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 conducting bar moves with a speed v= 18.4 m/s along parallel frictionless conducting rails…

A: Magnetic field, B = 0.65 T  Velocity, v = 18.4 m/s Length, l = 45 cm =0.45 m  Resistance, R = 2.4 ῼ

Q: A 0.250-mH coil is carrying a current of 6.0 A. What is the stored energy in the coil. a. 4.5 x 10 J…

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Q: A conducting bar moves with a speed v= 23.8 m/s along parallel frictionless conducting rails…

A: Given that Speed of conducting bar V = 23.8 m/s Length L = 45 cm = 0.45 m Resistance R = 3 Ohm…

Q: A solenoid of length 1.50 cm and radius 0.650 cm has 45 tums. If the wire of the solenoid has 1.45…

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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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Q: . A solenoid is wound with 2100 turns per meter. When the current is 4.2 A, what is the magnetic…

A: Given data: Number of Turns(n)=2100 Turns/meter current flowing through the solenoid(I)=4.2A To…

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

A:

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.