A transformer is used to:
Correct answer: D. Change the level of alternating voltage
- A. Convert alternating current to direct current
- B. Convert direct current to alternating current
- C. Convert mechanical energy to electrical energy
- D. Change the level of alternating voltage
Explanation
Option D is corect because transformer only works with alternating voltage and it is used increase or decrease the alternating voltages.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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