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

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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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

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