Answered: speed | bartleby

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter32: Inductance

Section: Chapter Questions

Problem 32.1CQ

See similar textbooks

Related questions

Concept explainers

Question

Directions: Read the statements/questions carefully. Choose the letter of the correct answer and write your answer before the item number. 1. The speed of the magnet decreases as it moves towards a coil, while the magnitude of the induced current also_______. A. increases B. zero C. decreases D. no change 2. As the strength of a magnet _________, the magnitude of induced current also _______. A. decreases; increases B. increases; increases C. increase; decreases D. decreases; no change 3. Electromotive force can be induced by A. Moving a magnet near a wire C. Changing magnetic field in a nearby wire B. Moving the wire near the magnet D. All of these 4. Which of the statements is true when there is change in magnetic field in a closed loop of wire. A. There is no current induced in the wire C. Electromotive force is induced in the wire B. The induced current is free to move in any direction of the wire D. All of these 5. Which of the following is NOT a way a magnetic field can be varied to induce a current in a wire? A. Rotate the coil inside the magnetic field C. Change the strength of the magnetic field B. Move the coil in and out the magnetic field D. Move the coil out of the magnetic field 6. What are the two main applications for AC? A. Direct, pulsating B. Electric, magnetic C. Power, information D. Static, dynamic 7. The distance that a signal's energy can travel in the time it takes for one cycle to occur is called the signal's: A. Amplitude B. Frequency C. Wavelength D. Period 8. One oscilloscope selector knob that allows the major and minor divisions of the graticule to be used to determine a signal amplitude value is called the: A. Time/cm Control B. Position Control C. Intensity control D. Volts/cm control 9. If current varies periodically from zero to a maximum, back to zero, and then repeats, the signal is: A. Direct B. Alternating C. Pulsating D. Repetitive 10. What voltage will an AC voltmeter display? A. Rms B. Average C. Peak D. Peak-to-Peak 11. What is the peak value of a household appliance that uses a 230 V ac source? A. 163 V B. 230 V C. 325 V D. 480 V 12. What is the waveform period difference between the 60 Hz electricity used in this country and the 50 Hz used in Europe? A. 3 ms B. 16 ms C. 4 ms D. 20 ms 13. Test equipment selection enables the technician to both generate signals and: A. Change circuit conditions C. Sense circuit conditions B. Inject signals D. Change signal frequencies 14. Why is ac current transfer more effective than dc current transfer over long distances? A. Due to the height of power lines C. Due to step-up and step-down transformers reduing I2R losses B. Due to the used of generators D. Due to very high voltages 15.A sine wave reaches maximum positive voltage at: A. 90° B. 0° C. -90° D. 360° 16. The phenomenon which occurs when the light rays travel from a more optically denser medium to a less optically denser medium. A. refraction B. interference C. polarization D. total internal reflection 17. Which of these undergoes total internal reflection? A. Gold B. Diamond C. Silver D. Platinum 18. Optical fibers are used in A. X-ray B. Angiogram C. Endoscopy D. None of the above 19. Mirage which occurs due to atmospheric refraction is a result of A. diffraction B. interference C. polarization D. total internal reflection 20. When the angle of incidence is greater than the critical angle, the incident ray is reflected to the medium, this phenomenon is known as. A. Total internal reflection B. Diffraction C. Refraction D. None of the above 21. When you lift your left hand in front of a mirror, what happens to the image? A. the image in the mirror looks like the hand is raising left hand C. no change in the image B. the image in the mirror looks like the hand is raising right hand D. the image is inverted 22. If the angle of incidence is 500, what is the angle of reflection? A. 200 B. 300 C. 400 D. 500 23. Which type of curved mirror is used inside mirrors of cars? A. concave mirror B. convex mirror C. plane mirror D. all the above 24. While traveling on a road on a hot summer day, distantly, water appears in the middle of the road out of no-where. Why do this happen? A. because of reflection of light C. because of dispersion of light B. because of refraction of light D. because of interference of light 25. Which of the following images is formed by plane mirrors? A. upright and virtual C. same distance from the mirror as the object appears to be B. same size as the object D. all the above 26. What do you call the point in which the reflection of light rays converges? A. focal point B. principal axis C. focal length D. aperture 27.What do you call the imaginary line passing through the optical center and the center of curvature of the spherical mirror? A. focal point B. principal axis C. focal length D. aperture 28. Why do light bends as it passes from one medium to another? A. because of the reflection light C. because of the diffraction of light B. because the density of the two media are different from one another D. because the medium are rough 29. Which of the following statements best describes a virtual image? A. A virtual image is formed because the light rays can be extended back to meet at the image position, but they do not actually go through the image position. B. an image that the light rays from the object pass through C. It can be projected on a screen D. It is inverted 30. Which of the following is true about a concave and convex mirror? A. Concave mirrors can form either real or virtual images, depending on where the object is relative to the focal point while a convex mirror can only form virtual images. B. Convex mirrors can form either real or virtual images, depending on where the object is relative to the focal point while a concave mirror can only form virtual images. C. Convex mirror is called converging mirror D. Concave mirror is called diverging

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.