Which of the following uses electric energy and does not convert it into any other form?
Correct answer: A. transformer
- A. transformer
- B. motor
- C. DC generator
- D. AC generator
Explanation
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction. It does not convert electric energy into any other form; instead, it changes the voltage level while keeping the power constant.
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About Electromagnetism
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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