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State value of potential difference bet...

State value of potential difference between the live wire and neutral wire of power supply in our country .

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KUMAR PRAKASHAN-MAGNETIC EFFECTS OF ELECTRIC CURRENT -ANSWER THE FOLLOWING QUESTIONS IN VERY SHORT AS DIRECTED (MISCELLANEOUS):
  1. Name any two source of direct current .

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  2. Name the device used to prevent damage to the electrical appliance ...

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  3. State value of potential difference between the live wire and neut...

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  4. State one difference between the wires used in the element of an ele...

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  5. In a domestic electric ciruit -wiring , with which wire do we con...

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  6. Mention two ways to increases the strength of the magnetic field of ...

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  7. Give the significance of the electric meter in a domestic circuit.

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  8. A domestic circuit has a line of 5A ratting. How many lamps of ratt...

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  9. Give any two uses of an electromagnet .

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  10. A constant current I flows in a horizontal wire in the plane of paper...

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  11. How do you magnetisea piece of magnetic material ?

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  12. How does the current in a domestic circuit differ from that used to...

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  13. State what would happen to the direction of rotation of the cell curr...

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  14. State the use of Maxwell.s corckscrew rule .

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  15. What type of dynamo (a machine for changing other power into electric...

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  16. Give one reason for not using a series arrangement for domestic circ...

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  17. What does the following symbol indicate/represent?

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  18. What is the function of the brushes in an AC generator ?

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  19. What determined the frequency of AC produced by a generator ?

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  20. What is the role of each of the three pins in a power plug ?

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