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Thread: pls let me know the answers

  1. #1 pls let me know the answers 
    Forum Freshman
    Join Date
    Jul 2012
    Erode, India
    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
    Join Date
    Jul 2012
    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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