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Science · 2026 · 3 marks
CBSE 2026 · Region 1 · Set 1 · Q37
(a)The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. Justify.(b)A current carrying straight wire AB is shown in the given diagram. Out of X, Y and Z on which point will the strength of magnetic field be maximum and why ?
(a)
The pattern of magnetic field due to a current carrying wire depends upon the shape made by that wire. Justify.
(b)
A current carrying straight wire AB is shown in the given diagram. Out of X, Y and Z on which point will the strength of magnetic field be maximum and why ?
Marking-scheme solution
(a) 
Magnetic field pattern for a current carrying straight conductorconcentric circles.
Magnetic field pattern for a current carrying solenoid- magnetic field lines similar to that of a bar magnet.
Magnetic field pattern for a current carrying circular loop- a pair of concentric circles with parallel straight lines at the centre.
(b)
At X.
Magnetic field decreases as the distance from the conducting wire increases.
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CBSE Class 10 Science past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.