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EMF of an electrical cell is 2 volt. A 1...

EMF of an electrical cell is 2 volt. A `10 Omega` resistance is joined at its two ends then potential difference is measured 1.6 volt. Find out the internal resistance and lost volt.

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MODERN PUBLICATION-CURRENT ELECTRICITY-REVISION EXERCISES (VERY SHORT ANSWER QUESTIONS)
  1. Draw a graph to show the variation of resistance of a metal wire as a ...

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  2. Define the term electrical conductivity of a metallic wire. Write its ...

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  3. EMF of an electrical cell is 2 volt. A 10 Omega resistance is joined a...

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  4. How does the conductivity of a metallic conductor vary with temperatur...

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  5. Discuss the effect of temperature on the resistance of (i) metals (ii)...

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  6. For metal conductors, the electrical resistivity decreases with the ri...

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  7. Out of copper and nichrome, which has the larger value of temperature ...

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  8. Two wires P and Q of same diameter and same length are joined in paral...

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  9. The graph given below shows the variation of resistance of mercury in ...

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  10. Of metals and alloys, which has greater value of temperature co-effici...

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  11. Plot a graph showing variation of current versus voltage for the mater...

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  12. A student obtains resistances 3, 4, 12 and 16 Ohm using only two metal...

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  13. Two students A and B were asked to pick a resistor of 15 k Omega from ...

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  14. A wire of resistance 5Omega is drawn out so that its length is increas...

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  15. What is the largest voltage you can safely put across a resistor marke...

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  16. Two conductors, one having resistance R and another 3R are connected i...

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  17. Out of the two bubls marked 25W and 100W, which one has the higher res...

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  18. A 150W and a 600W bulbs are joined in parallel to the mains. Out of th...

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  19. Write two special characteristics a wire of electric heater should hav...

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  20. The emf of a cell is always greater than its terminal voltage. Why? Gi...

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