A coil of wire containing 800 circular loops with cross section of 60 cm² is placed between the poles of a large electromagnet, where the magnetic field is uniform and at an angle of 30° with the plane of the coil. The field decreases at a rate of 0.23 T/s. What is the magnitude of the induced emf? *No backtracking. *Please be careful when answering, only your submission in BB will be considered as your final answer. *Focus on getting the correct answer, a separate time will be alloted for the uploading of the solutions. O 0.55 V O-0.96 V O OV O 0.96 V

A coil of wire containing 800 circular loops with cross section of 60 cm² is placed between the poles of a large electromagnet, where the magnetic field is uniform and at an angle of 30° with the plane of the coil. The field decreases at a rate of 0.23 T/s. What is the magnitude of the induced emf? No backtracking. Please be careful when answering, only your submission in BB will be considered as your final answer. *Focus on getting the correct answer, a separate time will be alloted for the uploading of the solutions. O 0.55 V O-0.96 V O OV O 0.96 V

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 57P: A 50-turn rectangular coil with dimensions 0.15m0.40m rotates in a uniform magnetic field of...

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Shown below is a conducting rod that slides along metal rails. The apparatus is in a uniform magnetic field of strength 0.25 T, which is directly into the page. The rod is pulled to the right at a constant speed of 5.0 m/s by a force . The only significant resistance in the circuit comes from the 2.0resistor shown. (a) What is the emf induced in the circuit? (b) What is the induced current? Does it circulate clockwise or counter clockwise? (c) What is the magnitude of(d) What are the power output of and the power dissipated in the resistor?
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A Two long, straight, parallel wires are shown in Figure P30.18. The current in the wire on the left is double the current in the wire on the right. Find an expression for the magnetic field at points A and B. Use the indicated coordinate system to write your answer in component form.
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A coil of area 0.100 m2 is rotating at 60.0 rev/s with the axis of rotation perpendicular to a 0.200-T magnetic field. (a) If the coil has 1 000 turns, what is the maximum emf generated in it? (b) What is the orientation of the coil with respect to the magnetic field when the maximum induced voltage occurs?
You wish to move a rectangular loop of wire into a region of uniform magnetic field at a given speed so as to induce an emf in the loop. The plane of the loop must remain perpendicular to the magnetic field lines. In which orientation should you hold the loop while you move it into the region of magnetic field so as to generate the largest emf? (a) with the long dimension of the loop parallel to the velocity vector (b) with the short dimension of the loop parallel to the velocity vector (c) either way because the emf is the same regardless of orientation
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Suppose a uniform magnetic field is perpendicular to the 81211-in. page of your homework and a rectangular metal loop lies on the page. The loops sides line up with the edges of the page. The magnetic field is changing with time as described by B = 3.75 103 t, where B is in teslas and t is in seconds. a. Is the magnetic field increasing or decreasing? b. Find the magnitude of the emf induced in the loop.
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