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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
- A metal plate weighing 750g is to be electroplated with 0.05% of its weight of silver.
- Photoelectric emision occurs only when the incident light has more than a certain minimum
- Minimum and maximum values of Poisson’s ratio for a metal lies between
- If the focal length of a concave mirror is 50 cm, then where should the object
- A boat of anchor is rocked by waves whose crests are 100 m apart and velocity
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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