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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
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
- The drift velocity of free electrons in a conductor is v, when a current
- A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
- The heart of a man pumps 5 litres of blood through the arteries per minute at
- Two vessels separately contain two ideal gases A and B at the same temperature,
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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