A single loop of steel wire, lying flat in a plane, has an area of 7.80 cm2 and a resistance of 2.10 Q. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and themagnitude increases linearly to 1.50 T in a time of 1.10 s. What is the induced current (in mA) in the loop of wire over this time?MARead

Answer is given below: Explanation:Question 1:Answer:

Answered: A single loop of steel wire, lying flat…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A 24-turn circular coil of wire has diameter 1.09 m. It is placed with its axis along the direction of the Earth's magnetic field of 47.0 µT and then in 0.200 s is flipped 180°. An average emf of what magnitude is generated in the coil? x What is the change in the magnetic flux during this time interval? mV
A circular coil with radius 0.564 m has 50 turns of wire in it. The total resistance of the coil is R and it is sitting in a perpendicular magnetic field of 10 T. As the magnetic field is ramped to zero over a period of 2 s, a 5.0 A current is induced in the coil. What is R? Hig Ο 10 Ω 15 Ω 30 Ω
A single loop of copper wire, lying flat in a plane, has an area of 7.60 cm2 and a resistance of 2.70 Ω. A uniform magnetic field points perpendicular to the plane of the loop. The field initially has a magnitude of 0.500 T, and the magnitude increases linearly to 2.00 T in a time of 1.06 s. What is the induced current (in mA) in the loop of wire over this time? mA
50. A straight, stiff wire of length 1.00 m and T=0 T= 0 mass 25 g is sus- pended in a magnetic field B=0.75 T. The wire is connected to -1.00 m an emf. How much current must flow in the wire and in what direction so that the wire is sus- pended and the tension in the supporting wires is zero?
150 mA X X 8.0 cm 8,0 cm The loop in the above figure has an induced current as shown. The loop has a resistance of 0.10 Q. Is the magnetic field strength increasing or decreasing? What is the rate of change of the field, AB/At?
= A single-turn circular loop has a radius of 25 cm, it is placed in a magnetic field of B 3.5 T which is perpendicular to the plane of the loop, see the figure below. The loop is reshaped into a perfect square without stretching the length of the loop. It takes 0.43 s to reshape the loop. What is the magnetic flux through the loop before and after it is reshaped? B X X X X X X X X X X X X X x x The final flux, Of = 5 x X X X X X X The initial flux, ¡ = 0.0000006 X Units mWb Х Х The induced emf, Emf = 34 X Units mWb x X X X What is the magnitude of the average induced emf in the loop during the reshaping process? X Units mV хх Question Help: Message instructor Post to forum
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1.2 Find the magnetic flux once coil is rotated about 0.3 seconds? A. 0.01 Wb B. 0 Wb C. 0.1 Wb D. 1 Wb
3. A 21.0 cm diameter coil consists of 34 turns of cylindrical copper wire 2.80 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 8.50 × 10−³ T/s. Determine the current in the loop in milli-amps (the resistivity for copper is 1.72 × 10-³2.m). mA
The magnetic flux through a wire loop of resistance 8.39 Ω changes from 4.7 T.m2 to 2.67 T.m2 in 0.1 seconds. What is the current induced in the wire?
Q2. A loop antenna of area 2.00 cm? and resistance 5.21 um is perpendicular to a uniform magnetic field of magnitude 17.0 µT. The field magnitude drops to zero in 2.96 ms. How much thermal energy is produced in the loop by the change in field?
The magnetic field through a single loop of wire 14.0 cm in radius and of 11.5 Ω resistance changes with time as shown in the figure. Calculate the emf in the loop as a function of time. a)What is the emf at t = 1.0 s? For the sign take the loop in the plane of the paper, and the magnetic field out of the paper. Take clockwise to be positive emf. b)What is the emf at t = 3.0 s? c)What is the emf at t = 5.0 s? d)What is the current at t = 1.0 s?

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