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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
- what should be the velocity of an electron so that its momentum becomes equal
- A cricketer can throw a ball to a maximum horizontal distance of 100 m. With the same
- An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰
- A rocket is fired upward from the earth surface such that it creates an acceleration
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
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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