A) current in the coils
B) voltage across the coils
C) resistance of coils
D) power in the coils
Correct Answer: D
Solution :
(d) power in the coils For an ideal step-down transformer, power is constant for both the coils. i.e., input power = Output power \[\therefore ={{V}_{p}}{{l}_{p}}={{V}_{s}}{{l}_{s}}\] or \[\frac{{{V}_{p}}}{{{V}_{s}}}=\frac{{{l}_{s}}}{{{l}_{p}}}\]You need to login to perform this action.
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