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Electromagnetic Induction — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Induction1 Mark
MCQ
The value of mutual inductance can be increased by.
  • A
    decreasing N
  • B
    increasing N
  • C
    winding the coil on wooden frame
  • D
    winding the coil on china clay
✓

Answer

  1. increasing N

Explanation:

$\text{M}=\mu\text{N}_1\text{N}_2\frac{\text{Area}_{12}}{\text{length}_{12}}$

Area12​ - area in common to both the coils where the flux links both of them together.

length12​ - length in common to both the coils where the flux links both of them together.

Therefore to increase the mutual inductance, the number of turns can be increased.

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