At what speed must the sliding rod in the figure below move to produce an emf of 1.20 V in a 1.69 T field, given the rod’s length is 29.0 cm?

Q: 2. The bar magnet is released through a circular ring of copper wire as shown in the figure. a)…

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Q: Q3: In an airplane the distance between the two ends of its wings is (45m), the pilot of the plane…

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Q: 2. A square coil of resistance 4 Ω, 50 turns and side length 5 cm is placed with its plane making an…

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Q: What is the direction of the induced current? AA B (outward) vat O A. clockwise O B.…

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Q: Calculate the magnitude of magnetic induction and determine its direction

A: Given:  Separation of center from wire→R Current→I

Q: An engineer is investigating potential energy with two identical magnetic roller coaster cars on…

A: Given: Two magnetic cars placed on different sides of center magnet which cannot move. Let car 1…

Q: Question: Could you please explain the bolded part with more detail? Specifically the bolded and…

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Q: 2. A square coil of resistance 4 0, 50 turns and side length 5 cm is placed with its plane making an…

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Q: (6) The generator coil shown in Figure is rotated through one-fourth of a revolution (from 9 = 0o to…

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Q: Using one of the equations in Ampere’s Law which is B=(2πr), prove that at any point inside the…

A: Firstly we make an amperian loop and then use Ampere circular law to  find magnetic inductionat…

Q: 5. There is a passage of 7.5 x 1018 electrons in a point in wire in 1.5 seconds. What is the current…

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Q: What is the rate at which the current though a 0.30-H coil is changing if an emf of 0.12 V isinduced…

A: We know that emf  ϵ=-LdIdt dIdt=ϵL

Q: Calculate the size of the magnetic field 19 m below a high voltage power line. The line carries 530…

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Q: How does the direction of motion of the bar magnet affect the magnitude and direction of the induced

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Q: 12. A rectangle coil of wire containing 5 loops is moved at a speed of 2.7m/s perpendicular to a 1.1…

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Q: What is the type of core material of the transformer?  a. Silicon steel b. Iron c. Copper d.…

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Q: 4. List the magnetic permeability and inductance values of some important materials: iron, steel,…

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Q: Compare the energy density stored in Earth’s electric field near its surface to that stored in…

A: The energy density in form of electric and magnetic field is given by  uE =εo E22uB = B22μo

Q: Name: 1) The figure shows a top view of a bar that can slide without friction. The resistor is 6.00…

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Q: Ferromagnetic materials  are used as shields for devices that are adversely affected by magnetic…

A: When you shield the devices with ferromagnetic material the device also act as a magnetic material…

Q: A conductor is initially at a rest in a magnetic field (image). In which direction should the…

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Q: 10. Which of the following is NOT true about induced electric field? A. It is caused by the changing…

A: Its force is not conservative since it depends on path.

Q: Describe the difference in what happens when you move the magnet through the coil slowly vs.…

A: The moment of the magnet through the coil gives us induced voltage in the coil which is produced due…

Q: A long solenoid  of 80 turns and length 16 cm is known to have a field of 4x10-3 T. What is the…

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Q: 112. A conductor is moved perpendicularly through magnetic field B as represented in the diagram…

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Q: A light conducting ring is placed on top of an iron core with a wire wrapped around it as shown.…

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Q: What are the two factors which can change the strength of the magnetic field around a straight…

A: Solution: What are the two factors which can change the strength of the magnetic field around a…

Q: he magnetic flux is used to calculate the induced emf. () 2. An emf is induced only when the…

A: (1)Explanation:-Induced emf which is also known as induced electromotive force, electromagnetic…

Q: 17. A bar magnet is oriented above a copper ring, as shown in the figure. If the magnet is moving…

A: A) This option is incorrect. As the magnet starts moving in the downward direction, the magnetic…

Q: 5. A jet airplane with a 75.0 m wingspan is flying at 280 m/s. What emf is induced between wing tips…

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Q: A student is performing a physics lab to test Faraday's Law. She places an 85-turn wire loop of…

A: Write a given value of this question. N=85r=0.07mt=0.9sBf=2.3TEmf=ε=0.45V

Q: A coil of wire is connected to a meter. When a bar magnet is moved in and out of the coil, the meter…

A: A meter is attached to a coil of wire. The meter registers a current when a bar magnet is inserted…

Q: What is self-induction? What happens to the work required to establish a magnetic field in a…

A: Self induction is a type of electromagnetic induction ( voltage or current is induced)

Q: 1.An electric motor is a machine which converts Electrical Energy into (Mechanicał, Potential)…

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Q: 13 A metallic ring is attached with the wall of a room. When the north pole of a magnet is brought…

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Q: 3. In which different applications can we see the significance of electromagnetic induction?…

A: Electromagnetic induction, often known as induction, is a process in which a conductor is placed in…

Q: List the magnetic permeability and inductance values of some important materials: iron, steel,…

A: We have to list the magnetic permeability and inductance values of some important materials: iron,…

Q: 14. In the figure, a bar magnet moves towards the solenoid. The direction of the induced current…

A: By Using lenzs law  The direction of induced current from through resistor is from a to b. Thus…

Q: At what speed (in meters per second) must the sliding rod in the figure below move to produce an emf…

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Q: 3. A copper ring and a wooden ring of the same dimensions are placed in magnetic fields so that…

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Q: 17. A rod of length L rotates counterclockwise with constant angular velocity w about one end in a…

A: By changing the magnetic flux enclosed by the area swept by the rod in uniform magnetic field, an…

Q: When the switch is closed in the circuit shown in the figure, the wire between the poles of the…

A: The force on the current carrying conductor placed in a magnetic field is F=IL×B When switch is…

Q: An aluminum disk is held between the poles of a powerful magnet and then pulled out. The person…

A: When there is change in magnetic flux linked with a closed surface ,then emf is induced .If circuit…

Q: (1) Show below is the are a bunch of loops of wire in a magnetic field which points into the page.…

A: According to Faradays Law: Current induced in the coil is given by- i=1Rd(ϕ)dtWhere, R is the…

Q: Using the dip needle readings shown, calculate the horizontal component of the Earth’s magnetic…

A: Horizontal component of the earth’s magnetic induction BH=Bcosθ

Q: 13. A bar magnet is oriented above a copper ring, as shown in the figure. The magnet is dropped and…

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