Review Conceptual Example 3 and the drawing as an aid in solving this problem. A conducting rod slides down between two frictionless vertical copper tracks at a constant speed of 5.9 m/s perpendicular to a 0.65-T magnetic field. The resistance of the rod and tracks is negligible. The rod maintains electrical contact with the tracks at all times and has a length of 1.8 m. A 0.83-02 resistor is attached between the tops of the tracks. (a) What is the mass of the rod? (b) Find the change in the gravitational potential energy that occurs in a time of 0.16 s. (c) Find the electrical energy dissipated in the resistor in 0.16 s. (a) Number i 12.9 (b) Number i 3.17 (c) Number i 4.62 Units kg Units Units J J

Review Conceptual Example 3 and the drawing as an aid in solving this problem. A conducting rod slides down between two frictionless vertical copper tracks at a constant speed of 5.9 m/s perpendicular to a 0.65-T magnetic field. The resistance of the rod and tracks is negligible. The rod maintains electrical contact with the tracks at all times and has a length of 1.8 m. A 0.83-02 resistor is attached between the tops of the tracks. (a) What is the mass of the rod? (b) Find the change in the gravitational potential energy that occurs in a time of 0.16 s. (c) Find the electrical energy dissipated in the resistor in 0.16 s. (a) Number i 12.9 (b) Number i 3.17 (c) Number i 4.62 Units kg Units Units J J

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)...

See similar textbooks

Similar questions

The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.40 , and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let l = 1.20 m. R x X x xx x → x xx x x x x Bin x x x x xx X xxx X x XX x * x x X X x X X X x x X F app i (a) Calculate the applied force required to move the bar to the right at a constant speed of 2.50 m/s. N (to the right) (b) At what rate is energy delivered to the resistor? W
A copper wire is 10.00 m long and has a cross-sectional area of 2.00 ✕ 10-4 m2. This wire forms a one turn loop in the shape of square and is then connected to a battery that applies a potential difference of 0.100 V. If the loop is placed in a uniform magnetic field of magnitude 0.400 T, what is the maximum torque that can act on it? The resistivity of copper is 1.7 ✕ 10-8 ·m.
Multiple-Concept Example 2 discusses the concepts that are used in this problem. In the drawing the magnetic field has a magnitude of 1.30 T, the rod has a length of 0.811 m, and the hand keeps the rod moving to the right at a constant speed of 3.86 m/s. If the current in the circuit is 0.0622 A, what is the average power being delivered to the circuit by the hand? x x × x ד Number i Units x Fhand × × x hand
A metal rod is forced to move with constant velocity = 75.0 cm/s along two parallel metal rails, connected with a strip of metal at one end, as shown in the figure. A magnetic field B = 0.35 T points out of the page. The rails are seperated by 35.0 cm. a)What emf is generated? b)If the rod has a resistance of 17.0 Ω and the rails and connectors have negligible resistance, what is the current in the rod? c)At what rate is energy being tranferred to thermal energy?
The two conducting rails in the drawing are tilted upward so they each make an angle of 30.0° with respect to the ground. The vertical magnetic field has a magnitude of 0.040 T. The 0.29-kg aluminum rod (length - 1.6 m) slides without friction down the rails at a constant velocity. How much current flows through the rod? Number i Conducting Units 16m-
The magnetic field perpendicular to a single 13.2-cm-diameter circular loop of copper wire decreases uniformly from 0.670 T to zero. If the wire is 2.75 mm in diameter, how much charge moves past a point in the coil during this operation? The resistivity of copper is 1.68×10−8Ω⋅m
A conducting coil of 2100 turns is connected to a galvanometer, and the total resistance of the circuit is 30 2. The area of each turn is 5.25 x 10-4 m2. This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 8.5 × 10´³C. Find the magnitude of the magnetic field. Number i Units
A circular copper loop is placed perpendicular to a uniform magnetic field of 0.75 T. Due to external forces, the area of the loop decreases at a rate of 7.26 x 10-3 m²/s. Determine the induced emf in the loop. O 6.3 x 10-4 V O 3.1 V O 5.4 x 10-3 V O 1.2 x 10-3 V O 3.1 × 10-4 V
Refer To: Ref 22-2 Which one of the following statements concerning this situation is true? Since the circuit moves with constant speed, the force F does zero work. The induced current flows clockwise around the circuit. As the circuit moves through the field, the field does work to produce the current. If the circuit were replaced with a wooden loop, there would be no induced emf. The temperature of the circuit remains constant.
The loop in the figure is being pushed into the 0.20 T magnetic field at 45 m/s . The resistance of the loop is 0.50 N. (Figure 1) You may want to review (Pages 849 - 851) . Figure 1 of 1 V В 5.0 cm
In one of NASA's space tether experiments, a 20.0 km long conducting wire was deployed as a power source by the space shuttle as it orbited at 7.86 × 10³ m/s around earth and across earth's magnetic field lines. If the component of earth's magnetic field perpendicular to the tether was 1.16 x 10-5 T, determine the maximum possible potential difference between the two ends of the tether.
An astronaut is connected to her spacecraft by a 29-m-long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 4.1 103 m/s. At one instant, the voltage measured between the ends of a wire embedded in the cord is measured to be 0.44 V. Assume the long dimension of the cord is perpendicular to the vertical component of Earth's magnetic field at that instant. (a) What is the magnitude of the vertical component of Earth's field at this location? uT(b) Does the measured voltage change as the system moves from one location to another? Explain.