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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
- If ∆U and ∆W represent the increase in internal energy and work done by the system
- Two bulbs when connected in parallel to a source take 60W each, the power consumed,
- The horizontal component of earth’s magnetic field at a place is 3×10⁻⁴ T
- The magnetic susceptibility is negative for
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
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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