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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
- The specific charge of a proton is 9.6×10⁷ C/kg. The specific charge of an alpha particle
- The ratio of the radii or gyration of a circular disc to that of a circular ring
- Two charges placed in air repel each other by a force of 10⁻⁴ N. When oil is
- A particle doing SHM has amplitude=4 cm and time period = 12 sec. The ratio between times
- Which of the following combinations should be selected for better tuning of an L-C-R
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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