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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.
Related Questions: - A magnetic needle suspended parallel to a magnetic field requires √3J of work
- A drum of radius R and mass M, rolls down without slipping along an inclined plane
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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 magnetic needle suspended parallel to a magnetic field requires √3J of work
- A drum of radius R and mass M, rolls down without slipping along an inclined plane
- The potential of a large liquid drop when eight liquid drops are combined is 20 V.
- What is the energy released by fission of 1 g of U²³⁵?
- An electron revolves in a circle at the rate of 10¹⁹ rounds per second.
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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