An Autotransformer Has a 2:1 Turns Ratio

question 20

Multiple Choice

An autotransformer has a 2:1 turns ratio. A voltage of 480 volts is connected across the entire winding. Since the transformer has a turns ratio of 2:1, a voltage of 240 volts will be supplied to the load. Ammeters connected in series with each winding indicate the current flow in the circuit. It is assumed that the load produces a current flow of 4 amperes on the secondary. A current flow of ____ amperes is supplied to the primary.

• A) 2
• B) 4
• C) 6
• D) 12

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A statistical mistake of failing to reject a false null hypothesis; also known as a false negative.