A Transformer Has 450 Turns in Its Primary Coil and 30

question 51

Multiple Choice

A transformer has 450 turns in its primary coil and 30 turns in its secondary coil.Which one of the following statements concerning this transformer is true?

• A)This is a step-up transformer.
• B)The turns ratio is 15 for this transformer.
• C)The ratio of the voltages V_s / V_p is 15 for this transformer.
• D)The ratio of the currents I_s / I_p is 0.067 for this transformer.
• E)The power delivered to the secondary must be the same as that delivered to the primary.

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