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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: - Consider a uniform square plate of side ɑ and mass m. The moment of inertia
- A round disc of moment of inertia i₂ about its axis perpendicular to its plane
- A wire of length 1 m is moving at a speed of 2 ms⁻¹ perpendicular to its length
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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
- Consider a uniform square plate of side ɑ and mass m. The moment of inertia
- A round disc of moment of inertia i₂ about its axis perpendicular to its plane
- A wire of length 1 m is moving at a speed of 2 ms⁻¹ perpendicular to its length
- A particle is released from rest from a tower of height h, i.e,t₁ : t₂ : t₃ is
- A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas
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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