Transformers in which the primary and secondary voltages are 180 out of phase are known as _____. ...

Transformers in which the primary and secondary voltages are 180 out of phase are known as _____.
 
  a. unlike-wound transformers
  b. like-wound transformers
  c. unequal transformers
  d. step-up transformers

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[Ques. 2] Given: A transformer has 200 turns in the primary, 100 turns in the secondary, and 150VAC applied to the
  primary. What is the voltage across the secondary?
 
  a. 75VAC
  b. 90VAC
  c. 120VAC
  d. 140VAC

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[Ques. 3] Which of the following uses electromagnetic induction to transfer electrical energy from one circuit to another?
 
  a. Coil
  b. Inductor
  c. Transformer
  d. Capacitor

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[Ques. 4] According to the power triangle, the apparent power is _____.
 
  a. less than the true power
  b. greater than the true power
  c. less than the reactive power
  d. equal to the reactive power

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[Ques. 5] ELI the ICE Man is used to remember _____.
 
  a. phase relationships that exist between voltage and current in an inductive circuit
  b. the phase relationship between current and amperage
  c. voltage lags resistance
  d. current lags voltage