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Science · 2024 · 3 marks
CBSE 2024 · Region 5 · Set 1 · Q32
(a) What happens when a bundle of wires of soft iron is placed inside the coil of a solenoid carrying a steady current? Name the device obtained. Why…
(a)
What happens when a bundle of wires of soft iron is placed inside the coil of a solenoid carrying a steady current? Name the device obtained. Why is it called so ?
(b)
Draw the magnetic field lines inside a current carrying solenoid. What does this pattern of magnetic field lines indicate ?
Marking-scheme solution
It gets magnetised
Electromagnet.
It behaves as a magnet only when current passes through the solenoid.
This pattern indicates that the magnetic field is uniform.
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CBSE Class 10 Science past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.