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A boy sharpens a pencil at both the ends...

A boy sharpens a pencil at both the ends and then uses its back ends to complete an electric circuit will the current flow though the electric circuit? Give reason for your answer. Name the black substance of the pencil

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The black substance is graphite. Yes, the current will flow through the electrical circuit because graphite is a good conductor of electricity.
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Name the black substance of pencil will the current flow through the electrical circuit when we use the sharppened ends of the pecil to comp[lete the circute ?

The table given below shows the symbols used to denote some common comonents used in electric circuits. Identify which circuit component each symbol denotes and write your answer in the blanks.

The table given below shows the symbols used to denote some common comonents used in electric circuits. Identify which circuit component each symbol denotes and write your answer in the blanks.

S CHAND IIT JEE FOUNDATION-CARBON AND ITS COMPOUNDS -QUESTION BANK 19 (NAME THE FOLLOWING )
  1. Does not have a fixed crystalline shape

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  2. what is produced after destructive distillation of coal.

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  3. what is an essential constituent of all organic substances.

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  4. This is a crystalline form of carbon which has football shaped spheric...

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  5. The allotrope of carbon used for making the black cores of pencils.

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  6. Allotrope of carbon used in cutting glass and rock drilling.

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  7. Amorphous form of carbon used in making shoepolish.

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  8. Gas generated in fire extinguishers which is responsible for controlli...

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  9. Why should soda-acid and foam-type extinguishers not be used in fighti...

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  10. Why is diamond hard while graphite is soft?

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  11. Why is graphite a good conductor of electricity but diamond is not?

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  12. An element belonging to group 14 of the periodic table has two common ...

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  13. A boy sharpens a pencil at both the ends and then uses its back ends t...

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  14. A colourless gas is produced on heating strongly a piece of black clec...

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  15. Why can inhaling of carbon monoxide become fatal?

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  16. Why is it dangerous to sleep in a closed room with a coal fire burning...

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  17. How does carbon dioxide help to extinguish fires?

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  18. What are the different products formed when methane and chlorine are m...

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