दो या दो से अधिक परस्पर युग्मित कुंडलियों (म्युचुअली कपल्ड कॉइल्स) की सापेक्ष ध्रुवता को ____________________ परिपाटी द्वारा दर्शाया जाता है।

A step-down transformer connected to an AC mains supply of 220 V operates an 11 V, 44 W lamp. Ignoring power losses, what is the current in the primary circuit?

A transformer has 200 turns in its primary winding and 1000 turns in its secondary winding. What type of transformer is this?