The drawing shows three flat coils, one square and two rectangular, each being pushed into a region where there is a uniform magi field directed into the screen. Outside of this region the magnetic field is zero. In each case the magnetic field within the region has the same magnitude, and the coil is being-pushed at the same velocity v. Each coil begins with one side just at the edge of the field region. Consider the magnitude of the average emf induced as each coil is pushed from the starting position shown in the drawing until the coil is just completely within the field region. Rank the magnitudes of the average emfs in descending order (largest first). X x x x L x x x X 2L x x x X x x x X x X X xX 2L L x. x X X x x x x x x x x x X X x x C A O 5B,ŠA andśc(a tie) O Éc,ŠA andB (a tie)

The drawing shows three flat coils, one square and two rectangular, each being pushed into a region where there is a uniform magi field directed into the screen. Outside of this region the magnetic field is zero. In each case the magnetic field within the region has the same magnitude, and the coil is being-pushed at the same velocity v. Each coil begins with one side just at the edge of the field region. Consider the magnitude of the average emf induced as each coil is pushed from the starting position shown in the drawing until the coil is just completely within the field region. Rank the magnitudes of the average emfs in descending order (largest first). X x x x L x x x X 2L x x x X x x x X x X X xX 2L L x. x X X x x x x x x x x x X X x x C A O 5B,ŠA andśc(a tie) O Éc,ŠA andB (a tie)

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter23: Faraday’s Law And Inductance

Section: Chapter Questions

Problem 1OQ

See similar textbooks

Similar questions

A thin conducting bar (60.0 cm long) aligned in the positive y direction is moving with velocity v=(1.25m/s)i in a region with a spatially uniform 0.400-T magnetic field directed at an angle of 36.0 above the xy plane. a. What is the magnitude of the emf induced along the length of the moving bar? b. Which end of the bar is positively charged?
A conducting single-turn circular loop with a total resistance of 5.00 is placed in a time-varying magnetic field that produces a magnetic flux through the loop given by B = a + bt2 ct3, where a = 4.00 Wb, b = 11.0 Wb/s2, and c = 6.00 Wb/s3. B is in webers, and t is in seconds. What is the maximum current induced in the loop during the time interval t = 0 to t = 3.50 s?
A flat, square coil of 20 turns that has sides of length 15.0 cm is rotating in a magnetic field of strength 0.050 T. If tlie maximum emf produced in die coil is 30.0 mV, what is the angular velocity of the coil?
A square loop with side length L, mass M, and resistance R lies in the xy plane. A magnetic field B = B0(y/L) k is present in the region of the space near the loop. Determine the magnitude and direction of the induced current in the loop as the loop starts moving at velocity v = B0(y/L) j.
A conducting circular loop of wire with radius 0.0300 m and resistance 0.40 Ω sits in a region of spatially uniform magnetic field, as shown in the figure. The magnetic field is directed into the plane of the figure and it changes in time with the expression B(t) = 1.080 T - (0.360 T/s )∙t (here T represents the unit Tesla and t is the time)a) Give the magnetic flux through the loop as a function of time.b) Give the EMF induced in the loop as a function of time.c) Calculate the induced current at time t = 1.0 s. Show the steps that lead to youranswers.d) What is the direction of the current in the loop at t = 1.0 s? Explain/justify youranswer
If a circular loop of wire of radius 17.0 cm is located in a region where the spatially uniform magnetic field perpendicular to the plane of the loop is changing at a rate of +1.7 ✕ 10−3 T/s, find the value of the induced EMF in this loop due to this changing magnetic field.
a square conductor loop in a uniform magnetic field B, that decreases with time as follows: B = 0.603 – 1.47 t. The magnetic field B is in tesla and time t in seconds. The magnetic field is directed inward and perpendicular to the plane of the loop with sides 1.99 m. Only half of the loop is in the magnetic field. What is the magnitude of the induced emf in the loop?
A uniform magnetic field B is perpendicular to the plane of a circular wire loop of radius r and with resistance R. The magnitude of the field varies with time according to B = B0e-t/T, where B0and T are constants (T is time constant). (a) Find an expresssion for the emf induced in the loop as a function of time. (b) If the loop lies in the plane of the page and the magnetic field initially points out of the page, then what is the magnitude and direction of the induced current in the loop, i.e., is it clockwise, counter-clockwise, or is there no current induced in the loop? Include a diagram for this situation.
A coil of wire containing 800 circular loops with radius 4 cm is placed between the poles of a large electromagnet, where the magnetic field is uniform and at an angle of 70 with the plane of the coil. The field decreases at a rate of 0.2 T/s. What are the magnitude and direction of the induced emf?
The face of a loop with a radius of 3 centimeters is perpendicular to a magnetic field that increases in magnitude from zero to 0.10 Tesla in 1 millisecond. What is the magnitude of the induced emf in the loop? If you look at the loop with the magnetic field facing you, in which direction (clockwise or counterclockwise) does the current flow around the loop?
The conducting rod shown in the figure has length L and is being pulled along horizontal, frictionless, conducting rails at a constant velocity. The rails are connected at one end with a metal strip. A uniform magnetic field, directed out of the page, fills the region in which the rod moves. Assume that L = 10cm, the speed of the is v = 6.2 m/s, and the magnitude of the magnetic field is B = 1.7 T. (a) What is the magnitude of emf induced in volts in the rod? (b) What is the current in amperes in the conducting loop? Assume that the resistance of the rod is 0.39 ohms and that the resistance of the rails and metal strip is negligibly small. (c) At what rate is the thermal energy being generated in the rod? (d) what force on the Rod is needed to maintain its velocity? (e) What is the work done by the force F?