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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 period of a simple pendulum inside a stationary lift is T. The lift accelerates
- ₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle
- The heart of a man pumps 5 litres of blood through the arteries per minute at
- The magnetic susceptibility is negative for
- A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
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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