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Heating and Chemical Effect of Current — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsHeating and Chemical 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
  • A
    $3.33 \times 10^{-9}$ Tesla
  • B
    $1.11 \times 10^{-4}$ Tesla
  • ✓
    $3 \times 10^{-3}$ Tesla
  • D
    $9 \times 10^{-2}$ Tesla
✓

Answer

Correct option: C.
$3 \times 10^{-3}$ Tesla
$3 \times 10^{-3}$ Tesla

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