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Explain the mechanical effect produced b...

Explain the mechanical effect produced by an electric current.

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A magnetic field exerts a force on a moving charge. Charges in motion constitute an electric current. Hence a current carrying conductor placed in a magnetic field experiences a force. If free to move, the conductor moves in the direction of the force.
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SUBHASH PUBLICATION-MOVING CHARGES AND MAGNETISM-TWO MARKS QUESTIONS WITH ANSWERS
  1. What is meant by 'magnetic dipole moment' of current loop? Write its S...

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  2. Compare the ratio of magnetic field produced at the centre of a circul...

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  3. Explain the mechanical effect produced by an electric current.

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  4. Give any two differences between an ammeter and a voltmeter.

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  5. What is the nature of force between two parallel wires carrying curren...

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  6. Why should the effective resistance of an ideal ammeter be zero and th...

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  7. Write the expression for the torque on a current loop placed in a unif...

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  8. Write the expression for the magnetic field at a point on the axis of ...

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  9. Give the expression for Lorentz force acting on a moving electric char...

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  10. An electron in an electric field is made static and prevented from fal...

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  11. What is the cause for the helical motion of a charged particle in a ma...

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  12. What is meant by the pitch of a charged particle describe a helical pa...

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  13. Give the direction of current passing through an open surface.

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  14. State Ampere's circuital law and represent it mathematically.

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  15. Write the equation for the force between the two parallel straight wir...

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  16. Give the direction of the magnetic field due to a current carrying cir...

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  17. Can a current carrying circular loop act as a magnetic dipole? Give th...

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  18. Give an analogy for the torques experienced by an electric dipole and ...

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  19. Write the expression for the magnetic moment due to an electron circul...

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  20. Represent the magnetic moment vector in terms of angular momentum vect...

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