Engine : Electricity - 198/1386 |
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What is the maximum allowable primary current of a 2 kVA step-down transformer with a four to one turns ratio if the primary is connected across a 440 volt line? |
A) 4.5 amps |
B) 1.1 amps |
C) 18.1 amps |
D) 27.7 amps |
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