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Identify the following wires used in a h...

Identify the following wires used in a household circuit :
The wire is also called as the phase wire.

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Red live wire is used as phase wire.
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A high tension wire is at a high potential with respect to a wire which is well grounded called Earth wire. You must have seen such wires stretched parallel to roads. There is a high tension wire between two points A and B. 1 km apart. The distance between HT wire and earth wire is 1 m. The resisatnce of the HT (and also the earth wire) is 1 Omega//m . This wire is at a potential of 11 KV at point A w.r.t. to earth wire. and its is carrying 1 A current which returns back to the generator by through the earth wire. This wire is quite a thick wire. There is a sign board at a pole over which this wire is stretched reading DANGER, 11 KV. You might thick what would happen if one touched this wire. Will one feel a shock or not. Well ! it depends on whether the current through our body exceeds a particular valuem which we may call CRITICAL CURRENT. If the potential difference between H.T and earth wire is 11 kV at point A, find p.d between these wires at point B

A high tension wire is at a high potential with respect to a wire which is well grounded called Earth wire. You must have seen such wires stretched parallel to roads. There is a high tension wire between two points A and B. 1 km apart. The distance between HT wire and earth wire is 1 m. The resisatnce of the HT (and also the earth wire) is 1 Omega//m . This wire is at a potential of 11 KV at point A w.r.t. to earth wire. and its is carrying 1 A current which returns back to the generator by through the earth wire. This wire is quite a thick wire. There is a sign board at a pole over which this wire is stretched reading DANGER, 11 KV. You might thick what would happen if one touched this wire. Will one feel a shock or not. Well ! it depends on whether the current through our body exceeds a particular valuem which we may call CRITICAL CURRENT. Why is H.T wire thick wire. Select the most appropriate option

ICSE-SELF ASSESSMENT PAPER -3-SECTION-A
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  2. An electric heater is rated 1000 W - 200 V. Calculate the current ...

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  3. Name a gas caused by the Greenhouse effect.

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

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

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

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

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

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

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

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

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

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  13. Identify the following wires used in a household circuit : The wire ...

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  14. Identify the following wires used in a household circuit : The wire ...

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  15. With reference to the term mechanical advantage, velocity ratio and ef...

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  16. State one use and one harmful effect of radioactivity.

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  17. How can a temperature in degree Celsius be converted into S.I. unit of...

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  18. A liquid X has the maximum specific heat capacity and is used as a coo...

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  19. Which of the radioactive radiations occurs in the following cases : ...

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  20. Which of the radioactive radiations : are deflected by an electric f...

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