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What is generator? Explain its working principle.

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Priyanka
PriyankaLv10
3 Nov 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

One generator uses a magnetic field of 0.194 T and has a coil areaper turn of 0.0496 m2. A second generator has a coil area per turnof 0.0184 m2. The generator coils have the same number of turns androtate at the same angular speed. What magnetic field should beused in the second generator, so that its peak emf is the same asthat of the first generator?

Really stumped on this one. Any help would be greatly appreciated!

Which of the following statements are true regarding electric generators?

  1. An electric generator creates a time-dependent induced voltage.Ā 

    Ā 

  2. An electric generator is used to increase or decrease an alternating current voltage.Ā 

    Ā 

  3. An electric generator converts mechanical energy into electrical energy.Ā 

    Ā 

  4. An electric generator converts electrical energy into magnetic energy.Ā 

    Ā 

  5. An electric generator creates a time-independent induced voltage.

You are working for a company that manufactures motors and generators. At the end of your first day of work, your supervisor explains to you that you will be assigned to a team that is designing a newĀ homopolar generator. You have no idea what that is but agree wholeheartedly to the assignment. At home that evening, you go online to learn about the homopolar generator and find the following.

Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā  Ā The homopolar generator, also called the Faraday disk, is a low-voltage, high-current electric generator. It consists of a rotating conducting disk with one stationary brush (a sliding electrical contact) at its axle and another at a point on its circumference as shown in Figure P30.17. A uniform magnetic field is applied perpendicular to the plane of the disk. When superconducting coils are used to produce a large magnetic field, a homopolar generator can have a power output of several megawatts. Such a generator is useful, for example, in purifying metals by electrolysis. If a voltage is applied to the output terminals of the generator, it runs in reverse as aĀ homopolar motorĀ capable of providing great torque, useful in ship propulsion.

At work the next morning, your supervisor tells you that the homopolar generator under consideration will have a magnetic field of magnitudeĀ BĀ = 0.900 T and the radius of the disk isĀ r = 0.400 m. The desired emf to be generated with the device is Your supervisor asks you to determine the required angular speed of the disk to achieve this result.

Chapter 30, Problem 17P, You are working for a company that manufactures motors and generators. At the end of your first day

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