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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
- Photoelectric current from a given photocell will depend upon
- The period of oscillation of a mass M suspended from a spring of negligible mass is T
- A cycle wheel of radius 4 m completes one revolution in two seconds. Then acceleration
- A current I flows along the length of an infinitely long, straight, thin walled pipe.
- A conveyor belt is moving at a constant speed of 2 m/s. A box is gently dropped on it
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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