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Thread: pls let me know the answers

  1. #1 pls let me know the answers 
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    1. An electric dipole of dipole moment p is kept parallel to an electric field of intensity E. The work done in rorating the dipole throgh an angle 90 deg is .....?

    options: 0, -pe, pe, -2pe

    2. which of the following devices has a source of emf inside it?

    options: voltmeter, ammeter, ohmmeter, rectifier.


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  3. #2  
    Forum Bachelors Degree Kerling's Avatar
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    1. Do your own homework.

    2. What is the energy difference between the two states?
    3. Think to yourself, just what is ElectroMagenticForce?


    In the information age ignorance is a choice.
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