A conducting rod spans a gap of length L = 0.065 m and acts as the fourth side of a rectangular conducting loop, as shown in the figure. A constant magnetic field with magnitude B = 0.75 T pointing into the paper is in the region. The rod is pulled to the right by an external force, and moves with constant speed v = 0.015 m/s. The resistance in the wire is R = 180Ω. Part (a) Express the magnitude of the magnetic flux going through the loop, Φ, in terms of B, a and L. Part (b) Express the change in the magnetic flux, ΔΦ, in terms of B, L, v and Δt. Part (c) Express the magnitude of the average emf induced in the loop, ε, in terms of B, L, v. Part (d) Calculate the emf, in volts. Part (e) Express the current induced in the loop, I, in terms of ε and R.

Q: Problem 2. A linear machine has the following characteristics: magnetic flux density B = 0.5 T into…

A: Given, magnetic flux density is, B=0.5T --into the page, length of bad, L=0.5m external resistance,…

Q: A square coil of wire of side 3.30 cm is placed in a uniform magnetic field of magnitude 2.50 T…

A: Solution      Given dataSide of Square coil a=3.30cm=3.30×10−2m2Areavof square coil…

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A: Given Data: Length (L) = 38.0 cm = 0.38 m.Magnitude of magnetic field (B) = 0.470 T.Speed (v) = 5.00…

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A: Given:: Quantitative explaination

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Q: Consider a long, horizontal Large Wire with current of 10A flowing through it. We want to levitate a…

A: A) As we know that the direction of magnetic field above a current carrying wire in which current…

Q: In d I L d L 'B

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Q: A circular coil of wire with a radius of 3.0 cm is placed in a magnetic field oriented…

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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: 1. A 4kg ball is launched into the air from the ground with a speed of 18m/s. At the top of its arc,…

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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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A: Detailed explanation:Given:Inner radius a=0.6cm=0.006mOuter radius b=1.8cm=0.018mTotal current…

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Q: A conducting rod of length = 65.0 cm is free to slide on two parallel conducting bars as shown in…

A: It is given that, l=65 cm=0.65 mR1=6 ΩR2=9 ΩB=10 Tv=4 m/s

Q: Find the flux of Earth’s magnetic field of magnitude 5.00 × 10−5 T through a square loop of area…

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Q: A square coil of wire of side 3.50 cm is placed in a uniform magnetic field of magnitude 2.50 T…

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Q: Problem 8: A conducting rod of length L = 0.085 m is lying on a rectangular wire as shown in the…

A: a)The expression for the magnetic flux,

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A: Given data B=0.395 Tv=7.53 m/sec

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A: Magnitude of the change in the magnetic flux:Δϕ=ΔBA=(3.5−0.65)(π⋅0.0352)Δϕ=10.968⋅10−3≈11.0…

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Q: The figure below shows a bar of mass m = 0.220 kg that can slide without friction on a pair of rails…

A: Given,

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Q: A conducting loop with area 0.15 m² and resistance 5.0 S lies in the x-y plane. A spatially uniform…

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Q: A current runs in a long solenoid of a radius 3 cm and 437 turns per meter. The current in the…

A: Radiusof long solenoid  (r) = 3 cm = 0.03 m Number of turns per meter (n) = 437 Rate of increase of…

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Q: A piece of copper wire has a resistance per unit length of 4.53 x 10^-3 Ohms/m. The wire is wound…

A: Magnetic field strength at the center of coil having N number of turns is given by as B= u°NI/(2r)

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.