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1221

Q:

What is the coupling of primary and secondary coils in a transformer?

  • 1
    Electrical
  • 2
    Mechanical
  • 3
    Magnetic
  • 4
    All these
  • Show Answer
  • Workspace

Answer : 3. "Magnetic"
Explanation :

The secondary coil is also generating a magnetic field that is growing and shrinking just like the field in the primary coil. This coupling of magnetic energy between these two coils is called mutual induction.

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