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3. current electricity — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics3. current electricity1 Mark
MCQ
When there is an electric current through a conducting wire along its length, then an electric field must exist
  • A
    Outside the wire but normal to it
  • B
    Outside the wire but parallel to it
  • ✓
    Inside the wire but parallel to it
  • D
    Inside the wire but normal to it
✓

Answer

Correct option: C.
Inside the wire but parallel to it
c
(c) As current is flowing through it, it means charges are flowing along its length therefore heir must be some electric fleld parallel to the length of the wire. Hence correct option is $C.$

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