R1R3* x X BLx x x RxR2A bar of lengthd 0.8 m is free to slide without friction on horizontal rails asshown in Figure. A uniform magnetic field B = 1.6 T is directed into the plane ofthe figure. Left ends of the rails are connected to a circuit composed ofresistances,R = 250, R2 = 10 N, and R3 = 10n, a solenoid with inductance L = 0.5 H , abattery with emf ɛ = 120 V , and a switch S. The bar has mass m =resistance R = 50. Ignore all other resistance in the circuit due to connectingwires and the rails. Just after the switch is closed, what is the accelerati on of thebar?%3D%3D100 g and83=%3DA) 38.4 m/s? B) 17.14 m/s? C) 8.4 m/s2 D) 264 m/s? E) 28 m/s2

In given circuit, just after the switch S is closed, Current through inductor will be zero, So…

A bar of length d = 0.8 m is free to slide without friction on horizontal rails as shown in Figure. A uniform magnetic fi eld B = 1.6 T is directed into the plane of the figure. Left ends of the rails are connected to a circuit composed ofresistances, R1 = 250, R2 = 10 N, and R3 = 102, a solenoid with inductance L = 0.5 H , a battery with emf ɛ = 120 V , and a switch S. The bar has mass m 100 g and resistance R =5N. Ignore all other resistance in the circuit due to connecting wires and the rails. Just after the switch is closed, what is the accelerati on of the bar? %3D %3D %3D %3D %3D

A bar of length d = 0.8 m is free to slide without friction on horizontal rails as shown in Figure. A uniform magnetic fi eld B = 1.6 T is directed into the plane of the figure. Left ends of the rails are connected to a circuit composed ofresistances, R1 = 250, R2 = 10 N, and R3 = 102, a solenoid with inductance L = 0.5 H , a battery with emf ɛ = 120 V , and a switch S. The bar has mass m 100 g and resistance R =5N. Ignore all other resistance in the circuit due to connecting wires and the rails. Just after the switch is closed, what is the accelerati on of the bar? %3D %3D %3D %3D %3D

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

R1
R3
* x X B
L
x x x Rx
R2
A bar of lengthd 0.8 m is free to slide without friction on horizontal rails as
shown in Figure. A uniform magnetic field B = 1.6 T is directed into the plane of
the figure. Left ends of the rails are connected to a circuit composed ofresistances,
R = 250, R2 = 10 N, and R3 = 10n, a solenoid with inductance L = 0.5 H , a
battery with emf ɛ = 120 V , and a switch S. The bar has mass m =
resistance R = 50. Ignore all other resistance in the circuit due to connecting
wires and the rails. Just after the switch is closed, what is the accelerati on of the
bar?
%3D
%3D
100 g and
83=
%3D
A) 38.4 m/s? B) 17.14 m/s? C) 8.4 m/s2 D) 264 m/s? E) 28 m/s2

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