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State four different ways in which three...

State four different ways in which three resistors of 'r' ohm each may be connected in a circuit. In which case is the equivalent resistance of the combination
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MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. A piece of wire of resistance 20Ohmis drawn out so that its length is ...

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  2. Study the following electric circuit and find potential difference acr...

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  3. State four different ways in which three resistors of 'r' ohm each may...

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  4. State four different ways in which three resistors of 'r' ohm each may...

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  5. A lamp rated 100 W at 220 V is connected to the mains electric supply....

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  6. Calculate the electric energy consumed by a 1200 W toaster in 20 minut...

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  7. Write the formula for the amount of the heat produced in a resistor wh...

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  8. Define power. Give its S.I unit and define it.

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  9. A current of 5A flows through 12 ohm resistor. What is the rate at whi...

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  10. Name the two type of electric charge.

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  11. What is SI unit of electric potential?

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  12. What is the name given to flow of electric charge per unit time in a w...

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  13. Name a device used to measure potential difference between two points ...

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  14. How is a voltmeter connected in the circuit to measure potential diffe...

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  15. Which instrument is used to measure current in the circuit ? how is it...

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  16. How is ammeter always connected in circuits?

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  17. If potential difference across resistor is increased, will the current...

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  18. When temperature of metal increases, does the resistance increases or ...

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  19. Which physical quantity has its unit kWh?

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  20. In a metal wire, electron moves from negative end to positive end and,...

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