= Moving Charges and Magnetism
{c}
{tag=Work by National Council of Educational Research and Training}
{title2=revised 2022}
Issued by <National Council of Educational Research and Training>.
Online text: https://ncert.nic.in/textbook/pdf/leph104.pdf
First edition December 2006; revised edition November 2022; the linked chapter is marked Reprint 2026–27. The issuing body is NCERT; no individual chapter byline is asserted.
Cited passages: Physics Part I, Class XII, §4.10, printed pp. 129–130, Figure 4.20 and equation (4.26): radial field, iron core, spring and pointer; §4.9.1, equations (4.20)–(4.24), and §4.10, equation (4.26): fixed-field versus radial-field torque.
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