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Show that Lenz's law obeys the law of co...

Show that Lenz's law obeys the law of conservation of enrgy.

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UNITED BOOK HOUSE-QUESTION PAPER 2017-EXERCISE
  1. In a nuclear decay, a nucleus emits one alpha-particle and then two be...

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  2. If two inputs of a NAND gate are joined, what type of a gate is formed...

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  3. State one difference between n-type and p-type semiconductors.

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  4. In a transistor emitter-base junction is always forward biased while t...

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  5. Show that equivalent resistance in parallel combination is always less...

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  6. How can the sensitivity of a potentimeter be increased ?

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  7. A Potentiometer has 10 wires each of 1 metre length and the total resi...

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  8. Draw a graph representing the change in specific resistance with tempe...

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  9. Find the equivalent resistance between the two ends A and B of the fol...

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  10. Define lost volt,State the factors on which the internal resistance of...

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  11. Define Wattless current.

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  12. Show that Lenz's law obeys the law of conservation of enrgy.

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  13. Show that in a.c. circuit the, average power dissipated per cycle in a...

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  14. Compare between inductive reactance and capacitive reactance.

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  15. State the factors on which the peak value of alternating emf depend.

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  16. In an LCR series combination, R=400Omega , L=100 mH and C=1muF. This c...

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  17. In an LCR series combination, R=400Omega , L=100 mH and C=1muF. This c...

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  18. With diagram, state the reason for short sightedness and mention its r...

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  19. In a certain midium the path difference 5xx10^-5 cm corresponds to a p...

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  20. The optic axes of two polaroids are inclined at an angle of 45@ with e...

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