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A current I ampere flows along the inner conductor of a co-axial cable and returns along the outer conductor of the cable, then the magnetic induction at any point outside the conductor at a distance r metre from the axis is
Options
(a) ∞
(b) zero
(c) μ₀∕4π 2i/r
(d) μ₀∕4π 2πi/r
Correct Answer:
zero
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck
- The 6563 Å line emitted by hydrogen atom in a star is found to be red shifted by 5Å
- The potential energy of particle in a force field is U = A/r² – b/r, where A and B
- A particle is kept at rest at the top of a sphere of diameter 42m.When disturbed slightly
- Pure Si at 300 k has equal electrons (nₑ) and hole (nh) concentrations
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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