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A wire in the form of a circular loop of one turn, carrying a current, produces a magnetic field B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is
Options
(a) 5 B
(b) 3 B
(c) 2 B
(d) 4 B
Correct Answer:
4 B
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 velocity of sound is V, in air. If the density of air is increased to four times
- Energy in a current carrying coil is stored in the form of
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
- A luminous object is seperated from a screen by distance d. A convex lens
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
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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