CBSE 2025 · Region 1 · Set 1 · Q23 · 3 marks
Using Biot-Savart law, derive expression for the magnetic field ( $\displaystyle \overrightarrow{\mathrm{B}}$ ) due to a circular current carrying loop at a point on its axis and hence at its centre.
Marking-scheme solution
Derivation for
Moving Charges and MagnetismMagnetic Field on the Axis of a Circular Current LoopApplyshort_answerhard
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CBSE Class 12 Physics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.