Physics · Electromagnetic induction: Faraday's law, induced emf and current, Lenz's law, eddy currents, self and mutual inductance
The transformer voltage induced in the secondary coil of a transformer is mainly
The transformer voltage induced in the secondary coil of a transformer is mainly due to:
- A. a varying electric field
- B. a varying magnetic field
- C. the vibrations of the primary coil
- D. the iron core of the transformer
Step-by-step solution
A transformer operates on the principle of electromagnetic induction. When an alternating current flows through the primary coil, it produces a varying magnetic field. This changing magnetic field links with the secondary coil, inducing an electromotive force (voltage) according to Faraday's law. Thus, the induced voltage in the secondary coil is primarily due to the varying magnetic field.
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