multiple choice number 13-15 B. DownC. RightD. Leftdn9. A loop of wire sits in an unchanging magnetic field. Which of the following is a NOT a way to induce acurrent through the loop?A. Rotate the loop about its diameterC. Stretch the loopD. Squeeze the loopB. Spin the loop about its center10. Which of the following statements is NOT true about DC current flow?A. DC current flows from negative to positive. C. Battery operated items are examples of DCB. DC current flows at a constant rate.power.D. All DC powered items need to be plugged in.11. The unidirectional current is calledA. alternating current12. The supply of electrical energy for a consumer is usually by AC becauseA. transmission and distribution are easily done.B. it most suitable for variable speed motor.B. electric chargeC. direct currentD. indirect currentC. the voltage drop in cables is minimal.D. cable power losses are negligible.13. Why is alternating current transfer more effective than dc current transfer over long distances?A. due to the height of power linesB. due to the use of ac generatorsC. due to step-up and step-down transformers reducing I'R lossesD. due to very high voltages14. AC is produced by a generator and its charge isA. positive or negative.15. The amount of force the electrons are moved in a circuit is calledB. positive and neutral. C. negative and positive. D. negative and negative.А. ampereB. currentC. emfD. voltage

Answered: Image /qna-images/answer/5f933164-2f4e-4573-80b4-9001c3493d30.jpg

13. Why is alternating current transfer more effective than dc current transfer over long distances? A. due to the height of power lines B. due to the use of ac generators C. due to step-up and step-down transformers reducing I'R losses D. due to very high voltages 14. AC is produced by a generator and its charge is, A. positive or negative. B. positive and neutral. C. negative and positive. D. negative and negative. 15. The amount of force the electrons are moved in a circuit is called A. ampere B. current C. emf D. voltage

13. Why is alternating current transfer more effective than dc current transfer over long distances? A. due to the height of power lines B. due to the use of ac generators C. due to step-up and step-down transformers reducing I'R losses D. due to very high voltages 14. AC is produced by a generator and its charge is, A. positive or negative. B. positive and neutral. C. negative and positive. D. negative and negative. 15. The amount of force the electrons are moved in a circuit is called A. ampere B. current C. emf D. voltage

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 40PE: The force on the rectangular loop of wire in the magnetic field in Figure 22.56 can be used to...

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