The 10-cm long slide wire of negligible resistance is pushed toward the 0.2-2 resistor at a steady speed of 5.0 m/s (see figure). The magnetic field strength is 0.50 T. Find: a) the magnitude of the pushing force b) the power the pushing force supplies to the wire c) direction (cw or ccw) and magnitude of the induced current d) the power dissipated by the resistor Zero-resistance wires Push 5.0 m/s 0.20 0.50 T

The 10-cm long slide wire of negligible resistance is pushed toward the 0.2-2 resistor at a steady speed of 5.0 m/s (see figure). The magnetic field strength is 0.50 T. Find: a) the magnitude of the pushing force b) the power the pushing force supplies to the wire c) direction (cw or ccw) and magnitude of the induced current d) the power dissipated by the resistor Zero-resistance wires Push 5.0 m/s 0.20 0.50 T

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 35P: The magnetic flux through the loop shown in the accompanying figure varies with time according to...

See similar textbooks

Similar questions

If electric and magnetic field strengths vary sinusoidally in time at frequency 1.00 GHz, being zero at t=0, then E=E0sin2ft. (a) When are the field strengths next equal to zero? (b) 4Jhen do they reach their most negative value? (c) How much time is needed for them to complete one cycle?
12.7 Check Your Understanding What is the ratio of the magnetic field produced from using a finite formula over the infinite approximation for an angle of (a) 85°? (b) 89°? The solenoid has 1000 mins in 50 cm with a current of 1.0 A flowing through the coils
A current is induced in a circular loop of radius 1.5 cm between two poles of a horseshoe electromagnet when the current in the electromagnet is varied. The magnetic Field in the area of the loop is perpendicular to the area and has a uniform magnitude. If the rate of change of magnetic field is 10 T/s, find the magnitude and direction of the induced current if resistance of the loop is 25 .
Show that the magnetic field at a distance r from the axis of two circular parallel plates, produced by placing charge Q(t) on the plates is Bind=02rdQ(t)dt
The magnetic flux through the loop shown in the accompanying figure varies with time according to m=2.00e3tsin(120t) , where m is in milliwebers. What are the direction and magnitude of the current through the 5.00 resistor at (a) t= 0; (b) t=2.17102 s and (c)t=3.00 s?
Check Your Understanding When the emf across a capacitor Is turned on and the capacitor Is allowed to charge, when does the magnetic field Induced by the displacement current have the greatest magnitude?
An automobile with a radio antenna 1.0 m long travels at 100.0 km/h in a location where theEarth’s horizontal magnetic field is 5.5105T . What is the maximum possible emf induced in the antenna due to this motion?
A parallel-plate capacitor with plate separation d is connected to a source of emf that places a time-dependent voltage V(t) across its circular plates of radius r0and area (a) Write an expression for the time rate of change of energy inside the capacitor in terms of V(t) and dV(t)/ dt. (b) Assuming that V(t) is increasing with time, identify the directions of the elecuic field lines inside the capacitor and of the magnetic field lines at the edge of the region between the plates, and then the direction of the Poynting vector S at this location. (c) Obtain expressions for the time dependence of E(t), for B(t) from the displacement current, and for the magnitude of the Poynting vector at the edge of the region between the plates. (d) From S , obtain an expression In terms of ‘(t) and dV(t)/dt for the rate at which electromagnetic field energy the region between the plates. (e) Compare the results of pails (a) and (d) and explain the relationship between them.
A single-turn circular loop of wire of radius 50 mm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.10-s time interval, the magnitude of the field Increases uniformly from 200 to 300 mT. (a) Determine the emf Induced in the ioop. (b) If the magnetic field is directed out of the page, what is the direction of the cun-ent induced in the loop?
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?
The accompanying figure shows a metal disk of inner radius r1 and other radius r2 rotating at an angular velocity while in a uniform magnetic field directed parallel to the rotational axis. The brush leads of voltmeter are connected to the dark's inner and outer surfaces as shown. What is the reading of the voltmeter ?
A nonconducting hard rubber circular disk of radius R is painted with a uniform surface charge density tr. It is rotated about its axis with angular speed . (a) Find the magnetic field produced at a point on the axis a distance h meters from the center of the disk, (b) Find the numerical value of magnitude of the magnetic field when =1C/m2 , R = 20 cm, h = 2 cm, and magnetic field of Earth, which is about 1/2 Gauss. =400rad/sec , and compare it with the magnitude of