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“There is no change in kinetic energy of...

“There is no change in kinetic energy of a charge particle moving perpendicularly in a uniform magnetic field”— Why?

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UNITED BOOK HOUSE-MODEL PAPER SET-07-EXERCISE
  1. For measuing a potential difference it is more logical to use a potent...

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  2. The ratio of cross section of two wires of same length and material i...

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  3. “There is no change in kinetic energy of a charge particle moving perp...

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  4. Write down the four Maxwell’s equations in electromagnetic theory.

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  5. Given examples of production of electron from photon and production of...

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  6. An electron is revolving in the third orbit of a hydrogen atom. What i...

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  7. What is transducer? Name the three components in communication system.

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  8. Find the capacitance of a parallel plate capacitor.

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  9. The unit of which physical quantity corresponds to J//C ? Is it scalar...

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  10. An electric dipole consists of two charges +- 20 xx 10^-6 C separated...

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  11. State Biot Savarts law. Write down the expression of magnetic field at...

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  12. In Young’s Double Slit experiment, the: two sources, haye intensities ...

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  13. Establish Einstein’s equation in photo-electric effect.

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  14. The ground state energy of hydrogen atom is - 13.6 eV:- What does nega...

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  15. The ground state energy of hydrogen atom is - 13.6 eV:- What is the en...

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  16. How is the p-n junction, used as a half wave rectifier and draw the in...

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  17. Emitter base connection is kept in forward bias — why?

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  18. Write down Kirchhoff’s laws from electric circuit.

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  19. A resistance 1000 Omega is connected to a 100 V supply line. A voltmet...

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  20. A Wheatstone network ABCD contains equal resistances P in the arms AB ...

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