A uniform magnetic field points into the page. The square current loop shown is rotated in this field by turning the crank on its left. As a result an alternating current emerges from the terminals on the right. This device is a a) motor b) transformer c) generator d) inductor

Q: What happens when the loop encloses no current? What happens when the loop encloses both positive…

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Q: ** 12. A flexible copper cable forms a conducting loop in the presence of a magnetic field of…

A: Given:-             According to Faraday's law of induction to which the induced emf is equal to the…

Q: A metal bar is pulled through a region in which the magnetic field is perpendicular to the plane of…

A: The movement of the bar does not lead to flux change. The emf is exacerbated by the high cost of…

Q: orizontal component of 2.6 x 10 -5 T that points due north and a vertical component of 4.2 x10 -5 T…

A: Given values:- House floor area,(a)=112 m2 ----(1) The area outside the wall,(A)=28 m2 ----(2) The…

Q: A circular wire loop of wire has radius 2.1 cm and resistance 0.045 ohms.  A magnetic field is…

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Q: coil is placed next to a straight wire. The current in the wire is as shown in the diagram below.…

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Q: 000000 (a) (b) (c) (d) et moves through a solenoid with constant velocity approaching fro - (b) (c)…

A: According to Lenz's law:- Induced current produced in circuit always flow in such a way that it…

Q: What is the direction of induced current in the loop shown in the sketch? dots represent constant…

A: Dots represent magnetic field lines coming out of the paper Radius also increasing this means flux…

Q: The coil of the electric motor shown in (Figure 1) has 100 turns and an area of 0.015 m². Its…

A: The torque on a current-carrying coil placed in a magnetic field is given by:ζ=NIABsin(θ)where,N is…

Q: 1. Use Lenz’s law to determine the direction of induced current in (a), below, observing from the…

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

Q: Need some help. A solenoid is created by winding wire with n turns per unit length around a…

A: Given A solenoid having n number of turns per unit length, with length ℓ and cross -sectional area.

Q: In this case predict whether there will be current induced through the resistor attached to the…

A: When the magnet moves upward, the amount of magnetic flux that is passing through the loop starts to…

Q: A uniform magnetic field that we control points out of the page, as shown in the diagram, and…

A: Consider a loop with radius r having resistance R is placed in the changing magnetic field pointing…

Q: Please answer the following in detail.

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Q: Conducting Metal Loop In the figure above, the north end of a bar magnet is pulled away from a…

A: The current is induced in a conducting metal loop when a bar magnet is moving in or out. The…

Q: 1) A loop of wire shown below has a clockwise electric current (the current on the left side is…

A: In the given question, We have to indicate the direction of the magnetic field.

Q: Pls help ASAP  and pls do nicely.

A: According to Faraday's law of electromagnetic induction, the emf induced in the coil is equal to the…

Q: Magnetic Field (into the page) What direction is the induced Magnetic Field within the closed loop?

A: Given: At t = 1.0 s     Magnetic field (B) = 12.0 T At t = 4.0 s     B = 2.0 T

Q: .A circular conducting loop moving initially at a constant velocity v enters a region with magnetic…

A: Required : Direction of induced current.

Q: 4. Use Lenz’s law to determine the direction of induced current in (d), below, observing from the…

A: Lenz's Law: Lenz's law states that "the direction of the current induced in a conductor due to the…

Q: 1) A loop of wire shown below has a clockwise electric current (the current on the left side is…

A: .

Q: Experiments to study vision often need to track the movements of a subject’s eye. One way of doing…

A: Given data: The number of the turns. N = 20. The diameter of the coil d = 6.0 mm = 6x10-3 m The…

Q: Figure shows two coils with iron cores inside the solenoid. Select TRUE statement just after the…

A: Electromagnetic induction

Q: Consider a square coil of side 2a that lies in the xy-plane and is centered about the origin. A…

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Q: A bar magnet is held stationary while a circular loop of wire is moved toward the magnet at constant…

A: a) According to Lenz’s law whenever the magnetic flux associated with loop changes the emf induces…

Q: The North Pole of a bar magnet enters a coil of wire. What are the directions of the induced current…

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Q: Please explain clearly and also how Lenz law is used. A magnet is placed near a metal loop. a)…

A: Lenz law According to lenz law current induced in a conducting loop due to change in magnetic field…

Q: A 1.90 m length of wire is held in an east-west direction and moves horizontally to the north with a…

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Q: A magnet is oriented next to a coil as shown in the figure below. The coil is moving in the…

A: Lenz's law will give us the direction of the induced magnetic field.

Q: A coil is placed next to a straight wire. The current in the wire is as shown in the diagram below.…

A: (a) (i) According to the right-hand thumb rule, the thumb indicates the direction of current ( which…

Q: A flexible copper cable forms a conducting loop in the presence of a magnetic field of strength 5.0…

A: Given that: B=5.0×10-3 TR=10ΩdAdt=-0.10 m2/s

Q: Shown below is a conducting rod that slides along metal rails. The apparatus is in a uniform…

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Q: I’m having a hard time finding the angle to determine the torque using geometry. The angle is…

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Q: A bar magnet is held stationary while a circular loop of wire is moved toward the magnet at constant…

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Q: 17. A U-shaped wire is bridged by a small metal rod AB of length I , and the distance of the rod…

A: Given, length of rod AB = l Wire is at initial position = a at t = 0. Wire is moving with constant…

Q: .A bar magnet is held above the center of a wire loop lying in the horizontal plane as shown in the…

A: The direction of current developed inside the loop is such that it will oppose the causes of it's…

Q: A 2.4 Henry inductor is connected in series with a 12.0 Volt direct current battery, a 6.0 Ohm…

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Q: Shown below is a conducting rod that slides along metal rails. The apparatus is in a uniform…

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

Q: 6. For each situation, circle the best choice. a. A current carrying wire is pulled away from a…

A: LENZ' LAW: induced emf always opposes its cause flux=BAcosθ B is magnetic field A is area θ is angle…

Q: Q18: Student A said that the magnetic field outside the long solenoid would be no larger than the…

A: solenoid is a long wire which is turned into a wire wound which forms a helix in geometry. the…

Q: 1. The rectangular loop below is pivoted about the y-axis and carries a current of 15 A in the…

A: Given current I =15A and uniform magnetic field with magnitude B=0.48T. We have to find the torque…

Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.