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On what factors does resistance depends?...

On what factors does resistance depends?Explain.

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MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. Draw the following electrical symbols: Electric bulb?

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  2. Write ohm's law. Draw a circuit diagram to prove it experimentally in ...

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  3. On what factors does resistance depends?Explain.

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  4. For three resistors connected in parallel,prove that the equivalent re...

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  5. Find the equivalent resistance of three resistors of 2Ohm,3Ohm,4Ohmwhe...

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  6. Find the equivalent resistance of three resistors of 2Ohm,3Ohm,4Ohmwhe...

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  7. A wire of resistance 20Ohmis bent in the from of closed circle.What is...

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  8. Calculate the effective resistance between A and B

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  9. Calculate the effective resistance between A and B

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  10. Calculate the effective resistance between A and B Also find the rea...

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  11. In the given circuit calculate the total resistance of the circuit.

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  12. In the given circuitcalculate current flowing through the circuit

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  13. In the given circuit calculate potential difference across the lamp an...

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  14. A piece of wire of resistance 20Ohmis drawn out so that its length is ...

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

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

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

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

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

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

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