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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
- Point masses m₁ and m₂ are placed at the opposite ends of a rigid rod of length L,
- In a circuit, L,C and R are connected in series with an alternating voltage source
- A ball rolls without slipping. The raidus of gyration of the ball about an axis
- Slope of PV and V for an isobaric process will be
- A 70 kg man stands in contact against the inner wall of a hollow cylindrical drum
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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