Transformer works on the principle of:
Correct answer: B. Mutual magnetic induction
- A. Self induction
- B. Mutual magnetic induction
- C. Electrostatics
- D. Mutual charging
Explanation
The transformer works based on the mutual induction principle between two coils. When a voltage is applied to the primary winding, a current passes through it and sets up a magnetic flux in the core. This flux induces an emf in the primary coil which must be exactly equal and opposite to applied voltage.
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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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