Net force on a circuiarcoil placed in magnetic field is zero as these forces cancel each other
4 ry Na? 4x*(0.19 x 169 x (0.05) 7. A small coil of radius 0.002 in...
A thin coil has 60 circular turns of wire of radius 4 cm. The current in the wire is 8 amperes. (a) What is the magnetic dipole moment of this coil? (b) At a distance of 40 cm from the center of the coil, along the axis of the coil, what is the approximate magnitude of the magnetic field contributed by the coil? The coil is placed with its axis along the x axis. A bar magnet whose magnetic dipole...
A 20-turn coil with radius 4 cm lies in the x-y plane. The coil has a total resistance of 5 Ω. The coil is in the presence of a uniform 0.25 T magnetic field oriented 15° with respect to the positive z-axis. Give the direction (clockwise or counter-clockwise) and magnitude of the current that will be induced in the coil by the field. Additionally what happens to the value of the induced current if the magnetic field changes to a...
5 A coil its (radius : NIaPPed vith 300 tures of vire on the periacter of a circular frase 8.0 ca). Each turn has the s sane area, equal to that of the frane. A nifore piane of the coil. This field changes eagnetic field is turned on perpendicular to the at a constnt rate froe 20 to 80 T in a tise of 20 s What is the sagnitade of tme induced eal in the coil at the instant...
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Question 9 4 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? 200 m/s O 0.84 m/s 14 m/s - 168 m/s O 42 m/s O 0.42 m/s 1.68 m/s 0.06 m/s 0.72 m/s Question 10 4 pts Suppose the angular velocity of a disk of radius R = 6 cm increases uniformly from 14...
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...