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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 radius of curvature of the convex face of a plano-convex lens is 12 cm
- The coherence of two light sources means that the light waves emitted have
- A charge Q is uniformly distributed over a large plastic plate. The electric field
- Maximum velocity of the photoelectron emitted by a metal is 1.8×10⁶ ms⁻¹.
- Two bodies of masses m₁ and m₂ are initially at rest at infinite distance apart
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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