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Electromagnetic Induction — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Induction1 Mark
MCQ
Self inductance of solenoid is
  • A
    directly proportional to current flowing through the coil.
  • B
    directly proportional to the length.
  • ✓
    directly proportional to its area of crosssection.
  • D
    inversely proportional to the area of crosssection.
✓

Answer

Correct option: C.
directly proportional to its area of crosssection.
(c) : As, $L=\frac{\mu_0 N^2 A}{l} ; L \propto A$

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