In class there are some coils for the Faraday's demo. One of them had 80-turn with radius of 5.0 cm and resistance of 30 Q. Determine the rate of change of the perpendicular magnetic field in order to record an induced current of 4.0 A along the coil. (AB)

Q: A circular coil of 100 turns and diameter 24 cm is rotated continuously in a uniform magnetic field…

A: We need to compute- Maximum emf induced in the coil (e0)=? Instantaneous induced emf (e)=? The data…

Q: A rectangular coil of 100 turns measures 0.08m2. This coil is placed next to an electromagnet which…

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Q: A 0.30-m-long metal bar is pulled to the left at constant speed of 20 m/s perpendicular to a…

A: The induced emf is determined by the rate of flux change Emf=dϕdt=ddtBxl=Bldxdt=Blv

Q: There is an electric generator with the following characteristics: the winding has 208 turns and a…

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Q: down, so it falls through a horizontal loop of wire. As it approaches the loop, what is the induced…

A: According to Lenz's law Induced emf is always opposes the cause by which it is produced

Q: A wire loop is being pulled through a uniform magnetic field toward the left. A magnetic field…

A: In this question the relevant concepts are  Lenz law of electromagnetic induction This law states…

Q: 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to5T in 0.15s that is…

A: 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to5T in 0.15s that is…

Q: A prototype of an MRI consists of a set of 400 coils each having a radius of 0.30 m. To test its…

A: V=∆ϕ∆t=NBA∆t=NBπR2∆t=4001.2 T3.140.30 m23.6 s=37.7 V

Q: A uniform magnetic field makes an angle of 60° with the central axis of a circular coil of 100 turns…

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Q: A flat coil enclosing an area of 0.24 m2 is rotating at 55 rev/s, with its axis of rotation…

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Q: The figure shows a 0.78-T magnetic field and a side view of a 17-turn square frame, 64 cm on a side,…

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Q: A coil with 50 turns and area 10cm² is oriented with its plane perpendicular to a 0.75-T magnetic…

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Q: A rectangular coil with sides 0.140 m by 0.210 m has 513 turns of wire. It is rotated about its long…

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Q: 2) A circular loop of radius 65cm rotates within a uniform 0.34T magnetic field. loop's normal…

A: Given Data:Radius of the loop, r = 65cm = 0.65m, so the area of the loop, A = πr² =…

Q: A rectangular coil with dimensions 0.18 m by 0.25 m has 560 turns of wire. It is rotated about its…

A: Solution     Given dataArea of coil A=0.18×0.25=0.045m2Number of turns N=560Magnetic field…

Q: The metal rod 1 m long rotates about its one end in a plane at right angles to a horizontal magnetic…

A: To find-Induced emf (e)=?Given-Length of the rod (l)=1 mfrequency (n)=100 rpsMagnetic induction…

Q: A coil is wound with 125 turns on a rectangle former with a length and width of 100 mm and 50 mm,…

A: When there is a change in flux in the loop an EMF is generated in the loop due to which current…

Q: A metal rod 1 m long rotates about one end in the plane perpendicular to a uniform magnetic field of…

A: Given : Length of the rod, l = 1 m Magnetic field induction, B = 0.38×10-4 Wb/m2 (or T) Because 1 T…

Q: A 10-turn square coil of area 0.036 m² and a 20-turn circular coil are both placed perpendicular to…

A: Turn, N1 = 10Turn, N2 = 20Area of square coil, A1 = 0.036 m²Area of circular coil, A2 = ?

Q: turns on her with a ter and 100 mm and 50 mm, respectively. The coil rotates in a uniform magnetic…

A: A rotating coil is placed in a magnetic field and a therefore a voltage is induced in the coil. If…

Q: D Question 3 2 pts In the figure, a wire and a 10 Q resistor are used to form a circuit in the shape…

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Q: In the figure below, a steel bar sitting on two parallel metal rails, connected to each other by a…

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Q: A 135 turn circular coil of radius 2.19 cm is immersed in a uniform magnetic field that is…

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Q: Cônsidér thé árrangement shown the figure belów. Assumé R = 4.00 and ? = 1.10 m, and a uniform…

A: Time varying magnetic fields produces a induced EMF which in turn produces current. This EMF depends…

Q: A 0.220 m radius, 525 turn coil is rotated one fourth of a revolution in 4.17 ms, orginally having…

A: Radius of coil r = 0.220 m Number of turns N = 525 Time ∆t = 4.17 ms = 4.17×10-3 s Induced emf ε =…

Q: A single loop of wire with an area of 0.0850 m2 is in a uniform magnetic field that has an initial…

A: Write the given values with the suitable variables. A=0.085 m2B=3.86 TdBdt=-0.175 T/s Here, A is the…

Q: A square loop 24.0 cm on a side has a resistance of 6.10 Ω It is initially in a 0.665-T magnetic…

A: Magnetic flux is the field lines passing through particular area when that area loop is kept…

Q: A flexible loop has a radius of 24.7 cm and it is in a magnetic field of B = 0.157 T. The loop is…

A: Ainitial=πR2=π(0.247m)2=0.1917 m2Afinal=0 m2∆t=0.189 sB=0.157 T

Q: The magnetic flux through a loop of wire is zero. Can there be an induced current in the loop at…

A: Yes, there can be an induced current in the loop at this instant. The induced current I in the loop…

Q: Generator and Transformer - Applications of Electromagnetic Induction Electricity Generator Induced…

A: Given, The magnetic field, B=1.29T The number of turns, N=200 The radius of the coil, r=0.060m a.…

Q: A square coil, enclosing an area with sides 8.32 cm long, is wrapped with 5666 turns of wire.  A…

A: The average voltage induced can mathematically be given by, Vavg=-NAdBdt dBdt is the rate of change…

Q: B0pts) A metal rod of length L = 1.2m and negligible resistance n freely move on the conducting bars…

A: Here magnetic flux is increasing as the metal rod moves so magnetic flux changes. As per Faraday's…

Q: 20. The figure shows a rod that is forced to move at constant speed v = 2.0 m/s along the horizontal…

A: length = L = 10 cm = 0.1 m magnetic field = B = 0.8 T Current = i = 10 mA

Q: A car is normally threaded with wire loops. Donlop tyres have about 200 loops a tyre. A car running…

A: Given data: Number of turns in the tyre, N =200 loops Speed of the car, v =16.7 m/s Angle between…

Q: A car alternator produces about 14 V peak output to charge the car's 12-V battery.  If the…

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Q: A metal rod is pulled along two frictionless, conducting rails in a magnetic field. The rod and…

A: Answer               Yes, clockwise

Q: . A rotating electrical part of a trimmer machine with 200 turns of square wire with side 18 cm,…

A: Given information: Here, N is the number of turns, a is the square’s side and dB is the change in…

Q: A prototype of an MRI consists of a set of 600 coils each having a radius of 0.20 m. To test its…

A: Given,The number coils (turns), N= 600Radius, r = 0.20 mMagnetic field, B = 1.8 TTime interval, ∆t…