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Science · 2025 · 4 marks
CBSE 2025 · Region 6 · Set 1 · Q39
Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ω respectively are joined in series with a battery of 2 V. (I) Draw a…
Study the circuit shown in which two resistors X and Y of resistances $\displaystyle 3 \Omega$ and $\displaystyle 6 \Omega$ respectively are joined in series with a battery of $\displaystyle 2$ V.
(I)
Draw a circuit diagram showing the above two resistors X and Y joined in parallel with same battery and same ammeter and voltmeter.
(II)
In which combination of resistors will the (i) potential difference across X and Y and (ii) current through X and Y, be the same ?
(III)
(a)
Find the current drawn from the battery by the series combination of the two resistors (X and Y).
OR
(b)
Determine the equivalent resistance of the parallel combination of the two resistors (X and Y).
Marking-scheme solution
(I)
(II)
(i)
in parallel combination.
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.