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4. Moving charges and magnetism — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics4. Moving charges and magnetism1 Mark
MCQ
Current is flowing through a conducting hollow pipe whose area of cross-section is shown in the figure. The value of magnetic induction will be zero at
  • A
    points $P, Q$ and $R$
  • B
    point $R$ but not at $P$ and $Q$
  • C
    $Q$ but not at $P$ and $R$
  • ✓
    $P$ but not at $Q$ and $R$
✓

Answer

Correct option: D.
$P$ but not at $Q$ and $R$
d

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