An ideal step-down transformer has a primary coil of 350 turns and a secondary coil of...
An ideal step-down transformer has a primary coil of 350 turns and a secondary coil of 10 turns. Its primary coil is plugged into an outlet with 220 V (AC). If the current in the secondary coil is 14.35 A, what current does the primary coil draw?
Homework Answers
Relation between current and turns of the primary and secondary in the transformer is
I1/I2=N2/N1
I1=(N2/N1)*I2
=(10/350)*14.35 A
=0.41 A
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