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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
- Two identical capacitors each of capacitance 5 mF are charged potentials 2 kV and 1 kV
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
- The second overtone of an open pipe is in resonance with the first overtone
- Light from the constellation Virgo is observed to increase in wavelength by 0.4%
- A body travels 200 cm in the first two seconds and 220 cm in the next 4 secs
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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