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Explain, with circuit diagram, how a Zen...

Explain, with circuit diagram, how a Zener diode regulates voltage across a load resistance.

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UNITED BOOK HOUSE-QUESTION PAPER 2018-EXAMPLE
  1. Draw the output characteristic curves of a n-p-n transistor in a C-E c...

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  2. What is Zener dioide? Draw its voltage vs currrent characteristics in ...

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  3. Explain, with circuit diagram, how a Zener diode regulates voltage acr...

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  4. Two cells of emf E1,E2 and internal resistances r1,r2 respectively are...

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  5. Estimate the average drilft velocity of conduction electrons in a copp...

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  6. Under what condition will be terminal petential difference be more tha...

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  7. Heat is produced at a rate given by H in a resistor when it is connect...

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  8. Determine the value of I in the circuit.

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  9. Establish the balanced condition of Wheatstone's bridge by applying Kr...

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  10. A horozontal straight wire 5m long extending from east to west is fall...

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  11. A horozontal straight wire 5m long extending from east to west is fall...

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  12. A horozontal straight wire 5m long extending from east to west is fall...

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  13. Derive the expression for energy stored in an inductor of coefficient ...

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  14. State the working principle of A.C. generator.

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  15. Why is the use of ac voltage preferred over dc voltage? Given two reas...

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  16. The power factor of a LR circuit is 1/sqrt3. IF the frequency of ac be...

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  17. What is the importance of coherent sources in the phenomenon of interf...

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  18. In young's double slit experiment, the fringe width is 2.0 mm.. Determ...

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  19. A plano-concave lens is made of glass of refractive index 1.5 an the r...

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  20. Find the anguylar width of the cental maxima of Fraundhofer diffractio...

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