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What is hysterisis? Define the terms 'co...

What is hysterisis? Define the terms 'coercivity' and 'retentivity' of a ferromagnetic material.

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The property of magnetic material to retain magnestism even in the absence of magnetizing field
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SUNSTAR PUBLICATION-SUPPLEMENTARY EXAM QUESTION PAPER JUNE-2019-Part-C
  1. What is hysterisis? Define the terms 'coercivity' and 'retentivity' of...

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  2. Mention and five properties of electric field lines.

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  3. Obtain an expression for effective Capacitance of two Capacitors Conne...

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  4. How is galvanometer converted into an ammeter?

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  5. Write three properties of diamagnetic and ferromagnetic materials

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  6. Obtain the relation between radius of curvature and focal length of a ...

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  7. Using Huygens principle, show that the angle of incidence is equal to ...

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  8. Mention the different methods of electron emission .

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  9. Give the logic symbol, Boolean expression and truth table of a NAND ga...

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  10. Obtain an expression for the electric field intenstiy at a point on th...

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  11. Deduce the condition for balance of a wheatstone's bridge using...

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  12. Derive an Expression for instantaneous induced emf in an A.C generator

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  13. Obtain an expression for the total energy of an electron in the n^(th)...

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  14. What is Rectification? Describe with a circuit diagram the working of ...

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  15. ABCD is a square of side 1m. Charges of +3nC, -5nC and +3nC are placed...

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  16. A network of Resistors is Connected to a 16V battery with internal res...

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  17. A sinusoidal voltage of peak value 283 V and frequency 50 Hz is applie...

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  18. An object of size 3.0cm is placed 14cm in front of a concave lens of f...

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  19. Calculate the binding Energy of an alpha (alpha) particle in Mev from ...

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