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Magnetic Effect...

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  • Question 1
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    Which of the following figures represents the magnetic lines of force due to an isolated north pole?

  • Question 2
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    In a circular current-carrying conductor, if the current flows in the clockwise direction, the magnetic field direction is __________.

  • Question 3
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    The magnetic field lines inside a long, current carrying solenoid are nearly:

  • Question 4
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    The unit in which we pay the cost of electricity is _____.

  • Question 5
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    Consider an experiment where Electric current is flowing in a wire. It is observed that clockwise magnetic field is produced around the wire. A teacher decides to reverse the direction of source battery which results in reversal of electrical current. What will be the effect on magnetic field?

  • Question 6
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    The basic principle of working of motors is

  • Question 7
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    Consider a current carrying coil placed in a magnetic field. What are the requirements for induced current to flow as per electromagnetic induction.

  • Question 8
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    Why are multiple fuses used in domestic electric circuit

  • Question 9
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    All power entering a house enters via

  • Question 10
    1 / -0

    What is a commutator?

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