Problem 22.07. In in a wind turbine, a powerful 10.0 T permanent magnet supplies a field for a coil of N = 500 turns with an area of 0.50 m². (a) If the coil rotates at a rate of 150 rpm, what is the maximum magnitude of the EMF generated by this wind turbine? (b) If a step-up transformer with Np 100 turns in the primary steps the voltage up to 100. kV, how many turns are there in the secondary coil? (d) If the resistance in the wind turbine circuit is 2.00 kn, what is the current in the secondary circuit? =

Problem 22.07. In in a wind turbine, a powerful 10.0 T permanent magnet supplies a field for a coil of N = 500 turns with an area of 0.50 m². (a) If the coil rotates at a rate of 150 rpm, what is the maximum magnitude of the EMF generated by this wind turbine? (b) If a step-up transformer with Np 100 turns in the primary steps the voltage up to 100. kV, how many turns are there in the secondary coil? (d) If the resistance in the wind turbine circuit is 2.00 kn, what is the current in the secondary circuit? =

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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Similar questions

Your camping buddy has an idea for a light to go inside your tent. He happens to have a powerful (and heavy!) horseshoe magnet that he bought at a surplus store. This magnet creates a 0.262 T field between two pole tips 13.6 cm apart. His idea is to build a hand-cranked generator with a rotating 6.8 cm radius semicircle between the pole tips. He thinks you can make enough current to fully light a 2.66 Ω lightbulb rated at 7.48 W. That's not super bright, but it should be bright enough. With what frequency (in Hz) will you have to turn the crank for the maximum current to fully light the bulb?
An emf of 24.0 mV is induced in a 500-turn coil when the current is changing at the rate of 10.0 A/s. What is the magnetic flux through each turn of the coil at an instant when the current is 4.00 A?
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A bicycle generator rotates at 1,800 rad/s, producing a 15.5 V peak emf. It has a 45-turn, 1.00 by 3.00 cm rectangular coil in a 0.640 T field. It is driven by a 1.48 cm diameter wheel that rolls on the outside rim of the bicycle tire. (a) What is the velocity of the bicycle? (Enter the magnitude in m/s.) m/s (b) What is the maximum emf (in V) of the generator when the bicycle moves at 10.0 m/s, noting that it was 15.5 V under the original conditions? V (c) If the sophisticated generator can vary its own magnetic field, what field strength (in T) will it need at 5.00 m/s to produce a 9.00 V maximum emf?