An ideal transformer has turns and is connected to an AC mains supply of
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
An ideal transformer has Np=200 turns and is connected to an AC mains supply of 220V, drawing a current of 2.0A. The secondary winding has Ns=2000 turns.
(i) Calculate the rms secondary voltage.
(ii) Calculate the rms secondary current and state whether the transformer is step-up or step-down.