In the figure below, a metal bar sitting on two parallel conducting rails, connected to each other by a resistor, is pulled to the right with a constant force of magnitude F,app= 1.10 N. The frictionbetween the bar and rails is negligible. The resistance R8.00 Q, the bar is moving at a constant speed of 1.85 m/s, the distance between the rails is {, and a uniform magnetic field B is directed into%Dthe page.RFapp(a) What is the current through the resistor (in A)?.5A(b) If the magnitude of the magnetic field is 2.90 T, what is the length e (in m)?.75m(c) What is the rate at which energy is delivered to the resistor (in W)?2.035W(d) What is the mechanical power delivered by the applied constant force (in W)?2.035WWhat If? Suppose the magnetic field has an initial value of 2.90 I at time t = 0 and increases at a constant rate of 0.500 T/s. The bar starts at an initial position x.resistor at t = 0, and again moves at a constant speed of 1.85 m/s. Derive time-varying expressions for the following quantities.= 0.100 m to the right of the(e) the current through the 8.00 N resistor R (Use the following as necessary: t. Assume I(t) is in A and t is in s. Do not include units in your answer.)I(t) =|(.509 + .202(1))The magnetic field is increasing linearly with time. Can you find an expression for the magnetic field at any time? Similarly, can you find an expression for the x-position of the bar at any time,knowing it moves at constant speed? Using these, how does the flux through the loop depend on time? From your expression for flux, can you find the emf, and then the current, at any time? A(f) the magnitude of the applied force Fapprequired to keep the bar moving at a constant speed (Use the following as necessary: t. Assume Fanp(t) is in N and t is in s. Do not include units in yourappanswer.)Fapp(t) =

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In the figure below, a metal bar sitting on two parallel conducting rails, connected to each other by a resistor, is pulled to the right with a constant force of magnitude Fano = 1.10 N. The friction between the bar and rails is negligible. The resistance R = 8.00 Q, the bar is moving at a constant speed of 1.85 m/s, the distance between the rails is {, and a uniform magnetic field B is directed into the page. (a) What is the current through the resistor (in A)? .5 (b) If the magnitude of the magnetic field is 2.90 T, what is the length { (in m)? .75 m (c) What is the rate at which energy is delivered to the resistor (in W)? 2.035 w

In the figure below, a metal bar sitting on two parallel conducting rails, connected to each other by a resistor, is pulled to the right with a constant force of magnitude Fano = 1.10 N. The friction between the bar and rails is negligible. The resistance R = 8.00 Q, the bar is moving at a constant speed of 1.85 m/s, the distance between the rails is {, and a uniform magnetic field B is directed into the page. (a) What is the current through the resistor (in A)? .5 (b) If the magnitude of the magnetic field is 2.90 T, what is the length { (in m)? .75 m (c) What is the rate at which energy is delivered to the resistor (in W)? 2.035 w

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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