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A wire of one metre length carries a constant current. The wire is bent to form a circular loop. The magnetic field at the centre of this loop is B.The same is now bent to form a circular loop of smaller radius having four turns. The magnetic field at the centre of this new loop will be
Options
(a) B/2
(b) 4B
(c) B/4
(d) 16B
Correct Answer:
16B
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
- When the rate of flow of charge through a metallic conductor
- A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected
- A body of mass 3 kg is under a constant force which cause a displacement
- A linear aperture whose width is 0.02 cm is placed immediately in front of a lens
- The binding energy of deutron is 2.2 MeV and that of ₂⁴He is 28 MeV.
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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