In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel, friction-less conducting rails connected as shown to a 4 ohm resistor (use this value. Ignore the 2.0 ohm mentioned in the figure for the resistance). A uniform 1.7-T magnetic field is perpendicular to the plane of the paper. If L = 51 cm, at what rate is thermal energy being generated in the resistor at the instant the speed of the bar is equal to 4.8 m/s? 2.02 V

In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel, friction-less conducting rails connected as shown to a 4 ohm resistor (use this value. Ignore the 2.0 ohm mentioned in the figure for the resistance). A uniform 1.7-T magnetic field is perpendicular to the plane of the paper. If L = 51 cm, at what rate is thermal energy being generated in the resistor at the instant the speed of the bar is equal to 4.8 m/s? 2.02 V

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 13.4CYU: Check Your Understanding Shown below is a rod of length l that is rotated counterclockwise around...

See similar textbooks

Similar questions

Check your Understanding Themagneticfield shown below Is confined to the cylindrical region shown and is changing withtime. Identity those paths for which =EdI0 .
The potential difference V(t) between parallel plates shown above is instantaneously increasing at a rate of 107V/s. What is the displacement current between the plates if the separation of the plates is 1.00 cm and they have an area of 0.200m2?
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 Shown below is a rod of length l that is rotated counterclockwise around the axis through O by the torque due to mg . Assuming that the rod is in a uniform magnetic field B , what is the emf induced between the ends of the rod when its angular velocity is ? Which end of the rod is at a higher potential?
Suppose the parallel-plate capacitor shown below is accumulating charge at a rate of 0.010 C’s. What is the induced magnetic field at a distance of 10 cm from the capacitator?
The maximum e.m.f produced in a generator that consist of 50turns of wire having an area of 0.5m² at a frequency of 30rev/s in a uniform magnetic flux density of 10^-2T is?
Why must part of the circuit be moving relative to other parts, to have usable motional emf? Consider, for example, that the rails in Figure are stationary relative to the magnetic field, while the rod moves.
What is the peak emf produced by a 72-turn square coil (of side l = 23.5 cm, as shown in the diagram below,) rotating on an axis with a frequency of 27.5 Hz in a uniform magnetic field of 0.405 T perpendicular to the coil's axis of rotation?
"Work out" a particular example (using vector fields) of applying Ampere's Law to compute an induced magnetic field from a simple time-varying electric field (but no conduction currents).
A rectangular coil of wire is placed in a constant magnetic field whose magnitude is 0.60T as shown in the figure below. If the coil has an area of 3cm^2, what is the magnitude of the magnetic flux through the loop?
What is the direction of the magnetic field that produces themagnetic force on a positive charge as shown in each of thethree cases in the figure below, assuming B is perpendicularto v ?