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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 resistor 30Ω, inductor of reactance 10 Ω and capacitor of reactance 10 Ω
- If the dipole moment of a short bar magnet is 1.25 A-m², the magnetic field on its
- An electric dipole of moment ‘p’ is placed in an elecatric field of intensity ‘E’
- A long wire carrying a steady current is bent into a circular loop of one turn.
- The liquid-crystal phase of a matter is called
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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