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What happens to the current in a circuit...

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

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The current is reduced to half its previous value.
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PRADEEP-ELECTRICITY-(Additional)Very Short Answer
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  2. On what factors does the resistivity of a material depend ?

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

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

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

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

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

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

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  14. Name a substance whose resistance decrease with temperature.

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

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  17. Name two special characteristics of a heater coil.

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

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

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