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An electric current passes through a long straight wire. At a distance 5 cm from the wire, the magnetic field is B. The field at 20 cm from the wire would be
Options
(a) B / 6
(b) B / 4
(c) B / 3
(d) B / 2
Correct Answer:
B / 4
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - The order of the electric field near the earth’s surface is
- A Gaussian surface in the cylinder of cross-section πa² and length L is immersed
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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 order of the electric field near the earth’s surface is
- A Gaussian surface in the cylinder of cross-section πa² and length L is immersed
- A particle of mass m moves with constant speed along a circular path of radius r under
- Which of the following physical quantities has neither dimensions nor unit
- If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s
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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