Electricity

CBSE Class 10 · Science · 23 past questions

5 of 23 · show all

1. Q8 2025

   An electric bulb is connected to a power supply of 220 V. If the current drawn by the bulb from the supply is…

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2. Q9 2025

   For Questions number 17 to 20, two statements are given — one labelled as Assertion (A) and the other…

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3. Q10 2025

   An electric kettle is rated 750 W; 220 V. Can this kettle be used in a circuit which has a fuse of current…

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4. Q11 2025

   A wire of length 'l' is gradually stretched so that its length increases to $3l$. If its original resistance…

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5. Q12 2025

   An electric kettle is rated 230 V; 1000 W. Calculate the resistance of its heating element when in operation.

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