R E Figure 21.43 A switch is ordinarily in series with a resistance and voltage source. Ideally, the switch has nearly zero resistance when closed but has an extremely large resistance when open. (Note that in this diagram, the script E represents the voltage (or electromotive force) of the battery.)

R E Figure 21.43 A switch is ordinarily in series with a resistance and voltage source. Ideally, the switch has nearly zero resistance when closed but has an extremely large resistance when open. (Note that in this diagram, the script E represents the voltage (or electromotive force) of the battery.)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 45P: The rod shown below moves to the right on essentially zero-resistance rails at a speed v=3.0m/s . If...

See similar textbooks

Similar questions

How is electrical energy producedin dams? (That is, how is theenergy of motion of the water convertedto AC electricity?)
A 75.0KW, 230-V shunt generator has a generated emf of 243.5V. If the field current is 12.5A at rated output, what is the armature resistance?
Integrated ConceptsA light-rail commuter train draws 630 A of 650-V DC electricity when accelerating. (a) How long does it take to reach 20.0 m/s starting from rest if its loaded mass is 5.30×104 kg, assuming 95.0% efficiency and constant power? (b) Find its average acceleration.
Find the direction of the current in the resistor shown inFigure P20.16 (a) at the instant the switch is closed, (b) afterthe switch has been closed for several minutes, and (c) at theinstant the switch is opened.
Integrated Concepts Derive an expression for the current in a system like that in Figure 23.11, under the following conditions. The resistance between the rails is R, the rails and the moving red are identical in cross section A and have the same resistivity . The distance between the rails is l, and the rod moves at constant speed v perpendicular to the uniform field B. At time zero, the moving red is next to the resistance R.
The rod shown below moves to the right on essentially zero-resistance rails at a speed v=3.0m/s . If B = 0.75 T eveywhere in the region, what is the current through the 5.0 resistor? Does the current circulate clockwise or counterclockwise?
Verify than the direction of the line force in an MHD drive, such as that in Figure 22.32, does not depend on the sign of the charges carrying the current across the fluid.
The current through A is 0.50 A when the switch S is open. What will the current be through A when the switch S is closed?
Two forces of magnitude 8N and 4N acts at right angle to each other. What is the resultant and the 8N force An electric iron rated 250V has a coil resistance of 125ohms what is the cost of using it for 1 hr at 10k per kWh
Answer both parts What current flows through the battery immediately after the switch is closed? What current flows through the battery when the switch has been closed for a long time?
Full solution to whole qn (answers is a)2000N & b)74 kW)
Compute for the current i3 in the circuit shown below