A conducting bar of length D rotates with angular frequency w about a pivot P at...
In the arrangement shown, a conducting bar of negligible resistance slides along horizontal, parallel. friction less conducting rails connected as shown to a 2.0-ohm resistor. A uniform 1.5-T magnetic field is perpendicular to the plane of the paper. If L = 60 cm, at what rate is thermal energy being generated in the resistor at the instant the speed of the bar is equal to 4.2 m/s? 8.6 W 7.8 W 7.1 W 9.3 W 1.8 W An AC generator...
Question 6 4 pts A rectangular loop rotates with a constant angular velocity w about one of its sides as shown in the figure below in a uniform time-invariant magnetic field of flux density B. At t=0 the loop is the plane (x-z). The vector B is in the plane of drawing (y-z). With Eo being a positive constant and T = 21, the induced emf in the loop is of the following form: Question 7 4 pts If the...
nt to p in the loop? (b) If the magnetic field r of 2.1 T, what is the magnitude of the ra verage emf has the 24. A uniform magnetic field is perpendi circular coil. The magnitude of the fiel in of basi rs, and o ummaie Section 22.4 Faraday's Law of Electromagnetic Induction 18. A magnetic field passes through a stationary wire loop, and its magnitude changes in time according to the graph in the drawing. The direction of...
A cylindrical shell with radius R and length W carries a uniform chargeQ and rotates about its axis with angular speed ω. The center of the cylinder lies at the origin O and its axis is coincident with the x-axis, as shown in (Figure 1).Part AWhat is the charge density σ?Express your answer in terms of the variables Q, R, and W.σ =______________Part BWhat is the differential current dI on a circular strip of the cylinder centered at x and with width dx?Express your...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The plune of the electron's Sicular path is parallel to the smooth vole faces of the electromagnet. In the region where the electron is moving the magnetic field is uniform and has magnitude 0,50 T. The electron moves with a speed of 1.5 x 10 m/s. a. If someone could observe the electron from the north pole of the electromagnet, would the electron inove clockwise...
(8%) Problem 5: A conducting rod spans a gap of length L = 0.015 m and acts as the fourth side of a rectangular conducting loop, as shown in the figure. A constant magnetic field with magnitude B= 0.15 T pointing into the paper is in the region. The rod is pulled to the right by an external force, and moves with constant speed v= 0.015 m/s. The resistance in the wire is R = 190 2. X X Х...
please show work when possible so that I may better understand. Thank you. x=L The rail gun consists of two thick conducting rails connected to a power supply and there is a magnetic field assumed to be uniform and constant in the direction shown. A short conducting bar that is to be (or carry) the projectile is placed across the bars at x -0. The current flows through the bars as shown. The magnetic force on the bar causes it...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
Question I.5 Figure 1.5 shows a frame with loads at A and D. Select the closest value for the magnitude of the total reaction at B. Assume the weight of the frame is zero. 40 kN VE 96.2 kN (a) (Ь -40 kN 5 m (c) -87.5 kN 30 kN (d) 57 kN 4m ao 1 m (e) 50 kN Figure L.5 Low mass frame Question I.6 In the shear and bending moment equations for beams, which of the following...
Note: This test contains ten questions from chapter 19 to chapter 27. For full credit, you should show all the steps of your numerical answers. No credit would be earned for just circling the right answers. Chapter 19 - Electric Potential and Electric Potential Energy 1. Two point charges are of + 7 uC and - 4 C are held at the corners of a rectangle as shown. The lengths of the sides of rectangle are 0.15 m, and 0.05...