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At what voltage is the alternating curre...

At what voltage is the alternating current supplied to our houses ?

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ICSE-SELF ASSESSMENT PAPER -3-SECTION .B.
  1. Three resistors are connected to a 6 V battery as shown in the figure ...

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  2. Write an expression for the electrical energy spent in the flow of cur...

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  3. At what voltage is the alternating current supplied to our houses ?

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  4. How should the electric lamps in a building be connected ?

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  5. A lens forms an erect, magnified and virtual image of an object. Dra...

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  6. An object AB is placed between 2F, and F, on the principal axis of a c...

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  7. It is observed that the temperature of the surroundings starts falling...

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  8. A substance has nearly zero resistance at a temperature of 1 K What is...

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  9. State the factors affecting the resistance of a conductor.

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  10. A pulley system has a velocity ratio 3. draw a diagram showing the poi...

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  11. The pulley system drawn lifts a load of 150 N when an effort of 60 N i...

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  13. A battery is designed by connecting four cells, each of emf 1.5 V and ...

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  14. A battery is designed by connecting four cells, each of emf 1.5 V and ...

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  15. A battery is designed by connecting four cells, each of emf 1.5 V and ...

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  16. List the names of three electrical gadgets used in your house. Write t...

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  17. A cell of e.m.f. 2V and internal resistance 1.2.Omega is connected wit...

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  18. A cell of e.m.f. 2V and internal resistance 1.2.Omega is connected wit...

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  19. Draw a diagram of a right angled isoscels prism which is used to make ...

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  20. A ray of light falls normally on a rectangular glass slab. Draw a ra...

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