In the figure below, a metal rod is forced to move with constant velocity  along two parallel metal rails, connected with a strip of metal at one end. A magnetic field  = 0.370 T points out of the page.         (a) If the rails are separated by 28.0 cm and the speed of the rod is 70.0 cm/s, what emf is generated?

Q: A single loop of wire with a radius of 7.5 cm rotates about a diameter in a uniform magnetic field…

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Q: A square wire loop with 2.00 m sides is perpendicular to a uniform magnetic field, with half the…

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Q: A long copper strip 1.8cm wide and 1.0mm thick is placed in a 1.2T magnetic field. When a steady…

A: Given: w =1.8 cm =1.8*10-2 mt = 1.0 mm =1.0 *10-3 mB=1.2 TI=15 A∆V=1.02 μV=1.02*10-6 V

Q: In the figure, a metal rod is forced to move with constant velocity along two parallel metal rails,…

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Q: nigure, a metal rod is force move with constant velocity along two parallel metal ralls, connected…

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Q: Chapter 30, Problem 029 In the figure, a metal rod is forced to move with constant velocity along…

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Q: To scan a patient, you need a magnetic filed of 0.4 Tesla. You have a solenoid of length 0.08 meters…

A: Numbers of turn = 1500 Magnetic field (B) = 0.4 T Length = L = 0.08 m

Q: A single loop of wire with an area of 0.0920 m2 is in a uniform magnetic field that has an initial…

A: The objective of the question is to find the electromotive force (emf) induced in the loop and the…

Q: A square wire loop with 2.4 m sides is perpendicular to a uniform magnetic field, with half the area…

A: Using the electromagnetic induction,

Q: A solenoid of 36 turns and area 20 cm2 has its ends connected together though a resistance of 5…

A: Using Faraday's law of electromagnetic induction Where e = emf induced, t = time,  = Magnetic flux

Q: Below is a rectangle that is being pulled into a magnetic field as shown. The rectangle has a height…

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Q: A flat coil of wire has an area A, N turns, and a resistance R. It is situated in a magnetic field,…

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Q: An astronaut is connected to her spacecraft by a 25.0-m-long tether cord as she and the spacecraft…

A: (a)   The magnitude of the Earth’s field at the given location can be determined as follows.

Q: In the figure, a wire loop of dimensions L = 42.3 cm and W = 26.5 cm lies in a magnetic field. What…

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Q: In the figure below, two straight conducting rails form a right angle. A conducting bar in contact…

A: Given data B=0.395 Tv=7.53 m/sec

Q: For a conducting rod of U-shaped metal wire of length, I = 30m is connected to a lightbulb having a…

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Q: The figure shows a 13-cm-diameter loop in three different magnetic fields. The loop's resistance is…

A: (Time varying fields)

Q: A solenoid of 69 turns and area 20 cm2 has its ends connected together though a resistance of 5…

A: Given value--- No. of turns = 69. Area = 20 cm2.  Resistance = 5 Ohm. Magnetic field = 3 × 10-2 T.…

Q: A jet airplane with a 75.0 m wingspan is flying at 260 m/s.What emf is induced between the wing tips…

A: Given that the value of wingspan and speed and also given the magnetic field.Then We have to…

Q: A metal rod is forced to move with constant velocity = 65.0 cm/s along two parallel metal rails,…

A: velocity(v)=65 cm/s=0.65 m/s magnetic field(B)=0.25 T L=35 cm=0.35m

Q: Below is a Motional EMF problem with a sliding, conducting bar connecting a wire loop within a…

A: Given:- The velocity of the bar V = 25.0 m/s  The magnetic field B = 0.640 T  The resistance in the…

Q: I got 0.1981686061 V

A: 0.40 VExplanation:

Q: The slide generator in the figure below is in a uniform magnetic field of magnitude 0.0500 T. The…

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Q: The magnetic flux through a coil of wire Λ changes from 30T *m ^ 2 to zero in a time of 0.50 s. What…

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Q: A V = 30 mV battery is connected to a single turn loop of dimensions a = 13 cm by b = 12.5 cm has a…

A: The given values are, V=30 mV=0.030 VA=a×b=13 cm×12.5 cm=13×10-2 m×12.5×10-2 m=162.5×10-4 m2R=15.5…

Q: A 12 turn conductive loop with an enclosed area of 0.62m2 exists in the plane of the page. A…

A: The Faraday's law of induction states that an emf is induced in a coil when the magnetic flux…

Q: In the figure, a metal rod is forced to move with constant velocity along two parallel metal rails,…

A: a) Emf can be calculated in ξ=BLv b) Current can be calculated in Ohm's law ξ=IR c) Energy…

Q: In the figure below, a metal rod is forced to move with constant velocity along two parallel metal…

A: Dear student, this question contains more than three sub-parts. We will answer first three…

Q: Below is a rectangle that is being pulled into a magnetic field as shown.  The rectangle has a…

A: GIVEN:- h=0.680 m, v=155m/s ,R=11.50 ohms, B=48mT Introduction:- We know that In motional…

Q: In the figure, a metal rod is forced to move with constant velocity along two parallel metal rails,…

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Q: A segment of wire 5.7 cm long is moving at a velocity of 2.89 m/s toward a parallel (much longer)…

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Q: The slide generator in the figure below is in a uniform magnetic field of magnitude 0.0500 T. The…

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Q: AV = 36 mV battery is connected to a single turn loop of dimensions a = 15 cm by b = 8 cm has a…

A: Calculate the area of the loop. A=abA=(15 cm)(8 cm)A=120 cm2×(1 m100 cm)2A=1.20×10−2 m2

Q: In the figure, a wire loop of dimensions L= 42.6 cm and W = 26.7 cm lies in a magnetic field. What…

A: Dear student,  "Since you have posted a question with multiple sub-parts, we will solve first three…

Q: A planar coil of wire is placed with its plane perpendicular to a uniform magnetic field of 1.6 T.…

A: Rate at which area changes is  dA/dt = - 0.5 m2/s

Q: A v-shaped metal rod completes a circuit while sliding without friction on a pair of rails in a…

A: The force (in Newtons ) pulling the rail downwards. given, Velocityv=7.28 m·s-1magnetic fieldB=6.40…

Q: Consider a conducting rod of length 32 cm moving along a pair of rails, and a magnetic field…

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Q: (a) Calculate the applied force required to move the bar to the right at a constant speed of 1.90…

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Q: A metal strip 5.00 cm long, 0.800 cm wide, and 0.700 mm thick moves with constant velocity through a…

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Q: move with constant velocity along two parallel metal rails, connected with a strip of metal at one…

A: We use concept of motional emf to solve this problem

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.