(Answered) A transformer with an efficiency of 80 is connected to

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A transformer with an efficiency of 80% is connected to 50-volt alternating current source. The voltage and current in the secondary are 500 Volts and 0.1 Amperes respectively. What is the current in the primary?

A) 0.8 A

B) 1.0 A

C) 1.25 A

D) 1.35 A

E) 1.15 A

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