Transformer energy reaches the secondary by direct wire, changing magnetic field in the core, core electrons flowing across, or heat conduction?
ٹرانسفارمر میں ثانوی تک توانائی براہِ راست تار، کور کے بدلتے میدان، پار الیکٹرون بہاؤ یا حرارت سے جاتی ہے؟
Solution & explanation
Changing magnetic flux links both coils. The iron core helps couple the flux; electrons do not cross from one insulated winding to the other.
Independent study answer. Original textbook ↗ · English-medium printed page 150–151.