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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
- If a gymnast, sitting on a rotating stool with his arms outstretched, suddenly
- If the magnetising field on a ferromagnetic material is increased, its permeability
- Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations
- For principal quantum number n=3, the possible values of orbital quantum number
- The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
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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