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Science · 2024 · 3 marks
CBSE 2024 · Region 4 · Set 2 · Q32
(a) How is a solenoid prepared? Differentiate between a circular coil and a solenoid. (b) Draw the pattern of the magnetic field lines inside a…
(a)
How is a solenoid prepared ? Differentiate between a circular coil and a solenoid.
(b)
Draw the pattern of the magnetic field lines inside a current carrying solenoid. What does this pattern indicate ?
Marking-scheme solution
(a) A solenoid is made by winding insulated copper wire over a non-conducting cylindrical tube closely and tightly wound in the shape of a cylindrical spring.
| Solenoid | Circular coil |
| Length of solenoid is much greater as compared to its diameter. | Its diameter is much greater as compared to its length. |
| Strong magnetic field | Weak magnetic field |
(b) 
Field lines are in the form of parallel straight lines which indicates that the 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.