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MODEL PAPER - 8 [2026] — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMODEL PAPER - 8 [2026]1 Mark
Question
Assertion (A) : A direction current flows through a metallic rod, produced a magnetic field only outside the rod.
Reason (R) : There is no flow of charge carriers inside the rod.
✓

Answer

(B) Both A and R are true but R is not the correct explanation of A .
Explanation :
In the case of metallic rod, the charge carries flow through the whole of the cross-section. Therefore, the magnetic field exists both inside as well as outside. However, the magnetic field inside the rod will go on decreasing as we go towards the axis.

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