21-3) A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted through a power line of total resistance 1.0 2. Find the number of turns in the secondary if the primary has 200 turns. A) 5 B) 200 C) 4500 D) 7500

21-3) A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted through a power line of total resistance 1.0 2. Find the number of turns in the secondary if the primary has 200 turns. A) 5 B) 200 C) 4500 D) 7500

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter21: Alternating-Current Circuits And Electromagnetic Waves

Section: Chapter Questions

Problem 47P

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

21-3) A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500
V by a transformer and transmitted through a power line of total resistance 1.0 22. Find the
number of turns in the secondary if the primary has 200 turns.
A) 5
B) 200
C) 4500
D) 7500

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