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Magnetic Effect of Current — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
MCQ
When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to some current flowing is $B_1$ If the same wire is turned into three loops to make a circular coil, the magnetic induction at the center of this coil for the same current will be
  • A
    $B_1$
  • ✓
    $9B_1$
  • C
    $3B_1$
  • D
    $27B_1$
✓

Answer

Correct option: B.
$9B_1$
(b) $9B_1$

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