2.0 2 4.0 cm

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

A: Length (L) = 0.1 m speed (v) = 10 msMagnetic field strength (B) = 1.5 T

Q: If a coil of wire in a magnetic field rotates 60 degrees, it provides an emf averaging 3.0 V. If the…

A:

Q: A square wire with 2 m sides is perpendicular to a uniform magnetic field, with half the area of the…

A: Given data, Length L=2 m EMF of battery ε=20 V Magnetic flux B=1.041-0.84t

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: The magnetic flux through a coil of wire containing two loops changes from -57.1 Wb to 17.7 Wb in…

A: Faraday's law of electromagnetic induction states that the magnitude of induced emf is equal to the…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A:

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

A:

Q: A circular copper ring, A = 0.1 m2 shown below, with 10 loops is positioned in a (Bi) 0.300 T…

A: Magnetic flux is defined in a similar way as that to electric flux and is given by the dot product…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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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: A conducting wire shaped in a "U shape" is connected to a 5 ohm light bulb. The 0.8 T external…

A: The objective of the question is to calculate the induced electromotive force in a conducting wire…

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: For the wire arrangement in Figure 7, a =10.0 cm and b =15.0 cm. The current in the long straight…

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Q: A B

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Q: A car generator turns at 400 rpm when the engine is idling. Its 300 turn, 5.1 cm by 8.15 cm…

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Q: A conducting wire shaped in a “U shape” is connected to a  5 ohm light bulb. The 0.8 T external…

A: We have to know about a basic formula.

Q: A coil consists of 25 loops of wire and has a diameter of 10 cm. Its resistance is 0.1Ω. At t=0 it…

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Q: (a) Find the inductance of the solenoid. (b) If the solenoid has 350 turns, what is the magnetic…

A: a) The solenoid’s self-induced emf can be represented as, Here, L, I, and t represent the…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A:

Q: A square wire with 2 m sides is perpendicular to a uniform magnetic field, with half the area of the…

A:

Q: the magnetic field starts with a strength (B) of 50 mT into the paper and it decreases to zero and…

A: Given that, the magnetic field starts with a strength (B) of 50 mT into the paper and it decreases…

Q: A circular loop of wire of radius 13.0 cm is placed in a magnetic field directed perpendicular to…

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Q: v = 2.5 m/s l = 94.5 cm

A: Given: The length of the rod is 94.5 cm. The speed of the rod is 2.5 m/s. The induced emf is 2 V.

Q: A wire loop moves translationally (no rotation) in a uniform magnetic field. Is there an emf induced…

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Q: The magnetic flux through the loop increases according to the relation shown below. What is the…

A: Magnitude of Induced EMF is given by: EMF = N*d(phi)/dt phi = Magnetic flux = (6.5t^2 + 1.9t) Wb N =…

Q: The circuit given is a square 20 cm on a side. The magnetic field increases steadily from 0 T to…

A: Magnitude of emf induced is given by, e=dϕdte=AdBdte=a2dBdte=0.220.500.010e=2V

Q: For the circuit below, A = 0.1 m2 shown below, with 10 loops is positioned in a (Bi) 0.500 T…

A: Faraday's law of induction states that the magnitude of the emf induced in a coil due to changing…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: A loop of highly conducting wire is placed in a magnetic field that is increasing out of the page…

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.