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Delicious77 [7]
3 years ago
13

Which of the following everyday phenomenon are based on the Faraday's effect? a. using your TV remote to turn it on and off b. r

eading data from your computer's hard drive c. playing a CD/DVD swiping your credit/debit card at the market d. playing one of your parent's ancient VHS tap.
Physics
1 answer:
Tcecarenko [31]3 years ago
3 0

Answer:

b. reading data from your computer's hard drive

Explanation:

Reading data from compact hard disc is an operation which is based ob kerr effect or Faraday effect . This effect involves rotation of plane of polarization of light when light passes through  a magnetic field. In order to read data from disc , a low intensity laser light is made to fall upon the disc . On reflection,

the plane of polarization of laser light  is rotated . The extent of rotation depends the extent of magnetization of magnetic disc. In this way information stored in the form of magnetic field is converted into information in the form of light .

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Explanation:

The energy contained in the small motions of the object's molecules can be broken up into a combination of microscopic kinetic energy and potential energy.

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2 years ago
If a girl carries groceries up a flight of stairs, is she doing work on the groceries? Explain.​
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Answer:

Explanation:

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The work done is against the force of gravity.

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Aneli [31]
The answer should be B
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4) The components of Vector A are given as follows Ax = -2.4 Ay = + 3.8 What is the magnitude of the A, and what is the angle th
Monica [59]

Answer:

A = 4.49

α = 57.72°

Explanation:

Knowing the magnitude of x & y of a vector we can determine the total magnitude of a vector.

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The angle tangent can be used to determine the angle.

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