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Magnetic Effect of Current — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
MCQ
The magnetic induction at a point P which is distant 4 cm from a long current carrying wire is $10^{-18}$ Tesla. The field of induction at a distance 12 cm from the same current would be
  • ✓
    $3.33 \times 10^{-9}$ Tesla
  • B
    $1.11 \times 10^{-4}$ Tesla
  • C
    $3 \times 10^{-3}$ Tesla
  • D
    $9 \times 10^{-2}$ Tesla
✓

Answer

Correct option: A.
$3.33 \times 10^{-9}$ Tesla
(a) $3.33 \times 10^{-9}$ Tesla

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