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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
- The time by a photoelectron to come out after the photon strikes is approximately
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
- A tube of length L is filled completely with an incompressible liquid of mass
- A person of mass 60 kg is inside a lift of mass 940 kg and presses the button on control panel.The lift starts moving upwards wi
- The ratio of longest wavelength corresponding to Lyman and Blamer series
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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