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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 light whose frequency is equal to 6.0 x 10¹⁴ Hz is incident on a metal
- A spherical liquid drop of radius R is divided into 8 equal droplets. If the surface
- An alternating voltage given as, V=100√2 sin100t V is applied to a capacitor
- A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz.
- A spring balance is attached to the ceiling of a lift.A man hangs his bag on the spring
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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