Printed textbook model paper
Why is an iron core used in transformers instead of wood or plastic? Explain briefly.
ٹرانسفارمر میں لکڑی یا پلاسٹک کے بجائے آہنی قلب کیوں استعمال ہوتا ہے؟ مختصر وضاحت کریں۔
Solution & explanation
A suitable soft magnetic core has high permeability and channels shared flux, improving linkage. Laminations reduce eddy-current losses; wood and plastic do not provide comparable magnetic coupling.
Independent study material · English-medium textbook p. iv · Original book ↗