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Important 2 Mark Book Back Questions (New Syllabus) 2020

12th Standard EM

    Reg.No. :


Time : 01:00:00 Hrs
Total Marks : 38

    Part A

    19 x 2 = 38
  1. Write a short note on superposition principle.

  2. Define ‘electrostatic potential energy’.

  3. Distinguish between drift velocity and mobility.

  4. What is electric power and electric energy?

  5. What is Peltier effect?

  6. State Coulomb’s inverse law.

  7. How is Eddy current produced? How do they flow in a conductor?

  8. What do you mean by resonant frequency?

  9. Write down the integral form of modified Ampere’s circuital law.

  10. What is principle of reversibility?

  11. Give the characteristics of image formed by a plane mirror.

  12. What is wave theory of light?

  13. Mention the differences between interference and diffraction.

  14. What is the use of an erecting lens in a terrestrial telescope?

  15. What is a photo cell? Mention the different types of photocells.

  16. What is isotope? Give an example.

  17. Define electron motion in a semiconductor.

  18. What does RADAR stand for?

  19. Why steel is preferred in making Robots?


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