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Answer : 3. "Magnetic"
What is the coupling of primary and secondary coils in a transformer?
5Q:
What is the coupling of primary and secondary coils in a transformer?
- 1Electricalfalse
- 2Mechanicalfalse
- 3Magnetictrue
- 4All thesefalse
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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.