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Name the phenomenon on which an a.c. dyn...

Name the phenomenon on which an a.c. dynamo works.

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ICSE-SPECIMEN PAPER (SOLVED)-SECTION II
  1. In an electric circuit shown alongside, find current in resistor ...

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  2. In an electric circuit shown alongside, find terminal voltage of...

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  3. Define the term "specific resistance and state its S.I. unit.

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  4. A metallic wire is doubled on itself. How do its resistance and specif...

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  5. Two resistors of resistance R1 = 2 Omega and R2= 1 Omega are connecte...

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  6. What do you mean by earthing of an electric appliance ?

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  7. What energy change takes place in a dc motor ? On what principle does ...

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  8. Name the phenomenon on which an a.c. dynamo works.

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  9. You are given two coils A and B. Through each coil, the initial magnet...

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  10. Name the device you will use to obtain 220 V a.c. from 11 V a.c. Draw ...

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  11. 200 g of water at 50.5^@C is cooled down to 10^@C by adding m g of ice...

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  12. Define the following terms: (i) calorie, (ii) heat capacity, (iii) spe...

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  13. Write the approximate specific heat capacity of copper in S.I. unit.

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  14. A certain mass of ice at 0^@C is converted to steam at 100^@C by const...

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  15. Calculate the equivalent energy in MeV of a unified atomic mass unit.

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  16. Name one radio isotope and state its use.

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  17. A nucleus Pu emits an alpha particle and changes to U which emits a be...

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  18. State one safety precaution for each of the following: in handling a...

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  19. State one safety precaution for each of the following: in establishm...

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  20. State one safety precaution for each of the following: in safe dispo...

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