1. Electric motors are devices that convert A. electrical; mechanical energy into energy C. chemical; potential B. mechanical; electrical 2. What two forces are required for generators and electric motors to work? D. mechanical, kinetic A. magnetism and thermal C. electricity and magnetism B. electricity and thermal D. magnetism and radiant 3. What word best fits this definition: A device which converts electrical energy into mechanical energy usually through the rotation of an electromagnet in the field of stationary magnet. A. Armature C. motor B. Electromagnet D. System 4. The rotating part of a motor. A. System C. electromagnet B. Brush D. armature 5. The contacts between the armature and the source of power in a motor. A. Electromagnet C. force field B. Ferromagnetic D. brushes 6. What is the part of a simple D.C motor that reverses the direction of current through the coil every half-cycie A. the armature C. the commutator B. the brushes D. slip rings 7. A magnet's magnetic field exists A. around the entire magnet C. only on the north pole D. only on the south pole B. on both poles 8. Opposite poles C. push away A. are balanced D. transfer electrons B. attract 9. What is magnetism? A.a contrac force B.a force created C.an invisible force that attracts electrically charged particle D.energy created by magnets.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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1. Electric motors are devices that convert A. electrical; mechanical energy into energy C. chemical; potential B. mechanical; electrical 2. What two forces are required for generators and electric motors to work? D. mechanical, kinetic A. magnetism and thermal C. electricity and magnetism B. electricity and thermal D. magnetism and radiant 3. What word best fits this definition: A device which converts electrical energy into mechanical energy usually through the rotation of an electromagnet in the field of stationary magnet. A. Armature C. motor B. Electromagnet D. System 4. The rotating part of a motor. A. System C. electromagnet B. Brush D. armature 5. The contacts between the armature and the source of power in a motor. A. Electromagnet C. force field B. Ferromagnetic D. brushes 6. What is the part of a simple D.C motor that reverses the direction of current through the coil every half-cycie A. the armature C. the commutator B. the brushes D. slip rings 7. A magnet's magnetic field exists A. around the entire magnet C. only on the north pole D. only on the south pole B. on both poles 8. Opposite poles C. push away A. are balanced D. transfer electrons B. attract 9. What is magnetism? A.a contrac force B.a force created C.an invisible force that attracts electrically charged particle D.energy created by magnets. 10.When two magnets attract me A. Change Color C Pull Together B. Get Colder D. Push Apart

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