Home Physics Magnetic Effects of Current Force on Moving Charges In a co-axial straight cable, the central co…
Physics Magnetic Effects of Current Force on Moving Charges Single Correct MCQ
Published on: September 11, 2026

In a co-axial straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero:

A
outside the cable
B
inside the outer conductor
C
inside the inner conductor
D
in between the two conductors

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The correct answer is:
A

outside the cable

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