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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
- A person wants a real image of his own, 3 times enlarged. Where should he stand
- The binding energy per nucleon of ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06MeV
- A battery of e.m.f. E and internal resistance r is connected to an external resistance
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
- A thin wire of length L and mass M is bent to form a semicircle.
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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