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Two parallel long wires carry currents i₁ and i₂ with i₁ > i₂ . When the currents are in the same direction, then the magnetic field midway between the wires is 10μT. When the direction of i₂ is reversed, then it becomes 40μT. Then, ratio of i₁/ i₂ is
Options
(a) (3:4)
(b) (5:3)
(c) (7:11)
(d) (11:7)
Correct Answer:
(5:3)
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 density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
- Angular momentum of the particle rotating with a central force is constant due to
- A coil of self-inductance L is connected in series with a bulb B and an AC source
- A body of mass 3 kg acted upon by a constant force is displaced by S meter
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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