Transformers cannot step up
Correct answer: A. DC voltage
- A. DC voltage
- B. AC voltage
- C. None of these
- D. Both a and b
Explanation
Transformers works on the principal of induction, with DC voltage current cannot be secondary coil. without current in secondary coil, a transformer cannot be formed
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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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