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If the peak value of a.c. current is 4.2...

If the peak value of a.c. current is `4.24A`, what is its root mean square value ?

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OSWAAL PUBLICATION-2018 Solved Paper 4-Exercise
  1. Write any one application of the cyclotron.

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  2. State Faraday's law of electromagnetic induction.

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  3. If the peak value of a.c. current is 4.24A, what is its root mean squa...

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  4. Mention energy losses in a transformer .

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  5. Two lenses of power +1.5D and -0.5D are kept in contact on their princ...

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  6. The decay of proton to neutron is possible only inside the nucleus. Wh...

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  7. What is 'depletion region' in a semiconductor diode?

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  8. What is the output of this combination?

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  9. Mention any two factors on which the capacitance of a parallel plate c...

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  10. State Kirchhoff's laws of Electrical network.

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  11. Define: (a) Magnetic declination (b)Magnetic dip. Mention the S.I. u...

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  12. Write an expression for magnetic potential energy of a magnetic dipole...

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  13. Give any two applications of X-rays.

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  14. What is 'myopia' ? How to rectify it?

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  15. Draw the diagram representing the schematic arrangement of Geiger-Mars...

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  16. Write any two characteristics of nuclear forces.

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  17. Mention any three properties of an electric charge.

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  18. State Ampere's circuital law . Using it, derive the expression for mag...

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  19. What is hysterisis? Define the terms 'coercivity' and 'retentivity' of...

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  20. Arrive at Snell's law of refraction, using Huygen's principle for refr...

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