What is the direction of external magnetic field (magnetic poles are shown in figure)? i. Left to Right or Right to Left? Left to right ii. What is the area of a rectangular coil (write your answer in SI unit)? What is the magnetic field direction in the coil's plane produced due to the current in the coil? Into the page or out of the page? (just choose your best answer from these two choices). iii. Out of the page

What is the direction of external magnetic field (magnetic poles are shown in figure)? i. Left to Right or Right to Left? Left to right ii. What is the area of a rectangular coil (write your answer in SI unit)? What is the magnetic field direction in the coil's plane produced due to the current in the coil? Into the page or out of the page? (just choose your best answer from these two choices). iii. Out of the page

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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Two long, straight wires cross each other at a right angle, and each carries the same current I . Which of the following statements is true regarding the total magnetic field due to the two wires at the various points in the figure? More than one statement may be correct. a.The field is strongest at points B and D. b.The field is strongest at points A and C. c.The field is out of the page at point B and into the page at point D. d.The field is out of the page at point C and out of the page at point D. e.The field has the same magnitude at all four points.
a.) a current in the CW direction to enhance the decreasing north magnetic field. b.) a current in the CW direction to enhance the decreasing south magnetic field. c.) a current in the CW direction to oppose the increasing south magnetic field. d.) a current in the CW direction to oppose the increasing north magnetic field. e.) no current in the coil. 7.) A conducting coil is rotated at constant speed in a uniform magnetic field as shown in the figure here. The time required by the loop to make a full rotation is T. The current generated in the coil would increase Side view a.) if the angular speed of the coil increases. b.) if the area of the coil increases. c.) if the strength of the magnetic field increases. d.) All of the above are correct. e.) None of the above are correct. 8.) An RLC circuit has a resonant frequency of fo. When the circuit is driven by an AC voltag source whose frequency is 2fo, which of the following is the most accurate?
A negatively charged particle is moving with a constant velocity directed to the left through a region of a uniform magnetic field B directed into the page as shown in the figure, in which direction must an electric field be applied to keep the particle moving along a straight line? XB Select one: a.Upward b.Downward c.into the page d.To the leftin the plane of the page e.Out of the page 1.To the right in the plane of the page
What is the direction of the magnetic force on a negative charge that moves as shown in the figure? B Select one: O a. In O b. there is no magnetic force O. Out O d. Left When the light is passing from rarer to a denser medium, which is the correct statement? O a. speed becomes zero O b. speed of light increases speed of light remains constant O d. speed of light decreases
A positively-charged point particle, q, with a speed of v = 3.0 x 105 m/s enters a uniform magnetic field, , at a 300 angle to the field as shown in the diagram below. Which of the following paths best describes the trajectory of the particle? a. A circle b. A helix c. An ellipse d. A hyperbola e. A parabola
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Which of the following is/are correctly stated? The magnitude of the magnetic field produced by a long and straight conductor carrying I-I current is inversely proportional to the distance r from the conductor. I- If current flows in the same direction in two long and parallel conductors, these conductors attract each other. III- The magnetic force per unit length between the conductors depends on the currents passing through the conductors and the 20 - distance between them. The magnetic field created by the current I passing through a ring of radius IV-a is inversely proportional to the radius a. a) I, II, III, IV O B) only I O C) I, II, III O D) I, III ΟΤΟ) 1, V
3. Current head-on to point P: Consider the case where the current is heading straight toward the point where we want the magnetic field. What is the magnetic field at the point P shown? Hint: consider a small piece ds and think about what the Biot-Savart law tells you. Holds x f 4πr2 Think about the angle between ds and î. dB 7 D P
Which of the following changes would increase the magnetic field strength at the center of the solenoid, assuming everything else remains constant? Explain why? A.Decreasing the length of the solenoid by removing turns of wire while keeping ? constant B.Decreasing ?,the current in the wire C.Decreasing ?,the number of turns of wire per millimetre D.Increasing ?,the current in the wire E.Increasing the length of the solenoid by adding turns of wire while keeping ? constant
The diagram below shows a circular wire loop of radius R carrying current I. What is the direction of the magnetic field, B, at the center of the loop? Top View farthest from you closest to you up В. down C. left D. right A.