A circular conducting loop of 5 turns of wire and radius 0.40 m has a resistance 20.00 of. It lies in a uniform magnetic field of 0.25 T directed into the page/screen. The wire is pulled on opposite sides by equal forces and stretched until its enclosed area is zero. It takes 0.20 s for the area to shrink to zero. What is the magnitude and direction of the current induced of the loop as a result of the change in its shape? X X X X X X X X initial situation final situation 1.57 A, counterclockwise 2.76 A, counterclockwise 1.57 A, clockwise 3.48 A, clockwise

A circular conducting loop of 5 turns of wire and radius 0.40 m has a resistance 20.00 of. It lies in a uniform magnetic field of 0.25 T directed into the page/screen. The wire is pulled on opposite sides by equal forces and stretched until its enclosed area is zero. It takes 0.20 s for the area to shrink to zero. What is the magnitude and direction of the current induced of the loop as a result of the change in its shape? X X X X X X X X initial situation final situation 1.57 A, counterclockwise 2.76 A, counterclockwise 1.57 A, clockwise 3.48 A, clockwise

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 27PE: Figure 23.59 A coil is moved into and out of a region of uniform magnetic field. A coil is moved...

See similar textbooks

Similar questions

How is the percentage change in the strength of the magnetic field across the face of the toroid related to the percentage change in the radial distance from the axis of the toroid?
A circular loop of radius R carries a current I. At what distance along the axis of the loop is the magnetic field one- half its value at the center of the loop?
Assume the region to the right of a certain plane contains a uniform magnetic field of magnitude 1.00 mT and the field is zero in the region to the left of the plane as shown in Figure P22.71. An electron, originally traveling perpendicular to the boundary plane, passes into the region of the field. (a) Determine the time interval required for the electron to leave the field-filled region, noting that the electrons path is a semicircle. (b) Assuming the maximum depth of penetration into the field is 2.00 cm, find the kinetic energy of the electron.
A wire ismade into a circular shape of radius R and pivoted along a central support.The two ends of the sire are touching a banish that is connected to a &power source. The stricture is between the poles of a magnet such that we can assume there is a uniform magnetic field on the wire. In terms of a coordinate system with origin at the center ofthe ring, magneticfieldisBx=B0,By=Bz= 0. and the ring rotates about the z-axis. Find the torque on the ring siren it is not in the xz-plane.
When the current through a circular loop is 6.0 A, the magnetic field at its center is 2.0104 T. What is the radius of the loop?
Sketch a plot of the magnitude of the magnetic field as a function of position r for a coax (Fig. P31.27).
Suppose you wish to produce 1.2-T magnetic field in a toroid with an iron core for which =4.0103 . The toroid has a mean radius of 15 cm and is wound with 500 turns. What current is required?
A charge of 4.0C .s distributed uniformly around a thin ring of insulating material. The ring has a radius of 0.20 m and rotates at 2.0104 rev/min around die axis that passes through its center and is perpendicular to the plane of the ring. What is the magnetic field at the center of the ring?
, (a) At what angle 0 is tlie torque on a current loop 90.0% of maximum? (b) 50.0% of maximum? (c) 10.0% of maximum?
The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25-cm apart. The system is in a uniform magnetic field of strength 0.75 T, which is directed into the page. The resistances of the rod and the rails are negligible, but the section PQ has a resistance of 0.25 . (a) What is the emf (including its sense) induced in the rod when it is moving to tire right with a speed of 5.0 m/s? (b) What force is required to keep the rod moving at this speed? (c) What is the rate at which work is done by this force? (d) What is the power dissipated in the resistor?
Two flat, circular coils, each with a radius R and wound with JV turns, ace mounted along the same axis so that they are parallel a distance d apart. What is the magnetic field at the midpoint of the common axis if a current I flows in the same direction through each coil?
A flat, circular loop has 20 turns. The radius of the loop is 10.0 cm and the current through the wire is 0.50 A. Determine the magnitude of the magnetic field at the center of the loop.