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State one difference between a dynamo an...

State one difference between a dynamo and a motor.

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UNITED BOOK HOUSE-QUESTION PAPER 2017-EXERCISE
  1. The cirtical angle of a transparent crystal for green light is 30^(@)....

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  2. What will be the change in focal length f of a concave mirror when imm...

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  3. State one difference between a dynamo and a motor.

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  4. On what physical quantity does the magnetic moment of an electron revo...

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  5. Is Burlow's wheel a motor? Give reason.

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  6. Very high or very low resistance cannot be measured correctly by using...

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  7. Define the corrent sensitivity and voltage sensitivity of a moving coi...

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  8. What are the quantities that oscillate in an electromagnetic wave? Sho...

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  9. The small ozone layer on top of the stratosphere is crucial for human ...

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  10. The voltage applied across the cathode and anode of an X-ray generatin...

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  11. Write the basic nuclear process of neutron undergoing beta-decay . Why...

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  12. Define amplitude modulation. The height of a TV tower is 125 metre. Fi...

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  13. Define surface density of electric charge. Two large conducting sphe...

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  14. Define dielectric constant. Two charges +-20xx10^(-6)C, placed 2 mm ap...

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  15. Define dielectric polarisation.

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  16. Deduce an expression from the potential energy stored in a parallel pl...

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  17. What is cyclotron frequency? It is possible for a cyclotron to acceler...

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  18. Write down the mathematical form of Ampere's circuital law related to ...

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  19. Define electromagnetic unit of current.

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  20. A wire of length 'I' is bent in the form a circular loop. With a numbe...

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