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What happens to the resistance of a circ...

What happens to the resistance of a circuit if the current through it is doubled ?

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The resistance of the circuit does not depend on the current through it.
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PRADEEP-ELECTRICITY-(Additional)Very Short Answer
  1. On what factors does the resistivity of a material depend ?

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  2. What happens to the current in a circuit if its resistance is doubled ...

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  3. What happens to the resistance of a circuit if the current through it ...

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  4. What happens it the pd across a resistance is doubled ?

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  5. How does the resistance of a wire depend upon its radius ?

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  6. How does the resistance of a wire depend on its length ?

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  7. How does the resistance of a metallic wire depend on its temperature ?

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  8. Two wires are of the same length, same radius, but one of them is of t...

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  9. Find the potential difference required to pass a current of 0.2 A in a...

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  10. An electric bulbs draws 1.2 A current at 6.0 V. Find the resistance of...

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  11. Which will have a higher resistivity : a conductor or an insulator ?

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  12. Two wires of same material and same length have radii r1 and r2 respec...

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  13. Name a substance whose resistance decrease with temperature.

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  14. Name a substance whose resistance almost remains unchanged by increase...

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  15. Distinguish between kilowatt and kilowatt hour.

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  16. Name two special characteristics of a heater coil.

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  17. A 60 W bulb carries a current 0.5 A. Find the charge that passes throu...

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  18. Calculate the current through a lamp of 25 W operating at 200 V.

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  19. If r1,r2 and r3 are three resistors connected in series in a circuit a...

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  20. Which combination of resistors is used to decrease current in a circui...

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