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What characteristics should a fuse wire ...

What characteristics should a fuse wire have?

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High resistance
Low melting point
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ICSE-SELF ASSESSMENT PAPER -3-SECTION-A
  1. How is the frequency of a stretched string related to: Its tension?

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  2. Draw a ray diagram to illustrate how a ray of light incident obliquely...

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  3. What characteristics should a fuse wire have?

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  4. When does a ray of light falling on a lens pass through it undeviated ...

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  5. Which lens can produce a real and inverted image of an object ?

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  6. Explain briefly what causes the twinkling of stars at night?

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  7. Complete the following sentences : (a) 1J= …………ealorie . (b) 1 kWh …...

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  8. Define the term energy and state its S.I. unit

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  9. An electric heater is rated 1000 W - 200 V. Calculate the resistan...

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  10. An electric heater is rated 1000 W - 200 V. Calculate the current ...

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  11. Name a gas caused by the Greenhouse effect.

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  12. Which property of water makes it an effective coolant ?

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  13. State the conditions required for total internal reflection of light t...

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  14. State the energy changes in the following while in use: Burning of a...

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  15. State the energy changes in the following while in use: A steam engi...

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  16. An enemy plane is at a distance of 300 km from a radar. In how much ti...

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  17. Why is white light considered to be polychromatic in nature?

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  18. Give the range of wavelength of the electromagnetic waves visible to u...

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  19. Draw a labelled diagram of a three pin socket.

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  20. The following diagram shows a 60^(@),30^(@),90^(@) glass prism of crit...

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