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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: - The horizontal range and the maximum height of a projectile are equal
- Unit of electrical conductivity is
- A thin rod of length L and mass M is bent at its midpoint into two halves
- In circular coil, when number of turns is doubled and resistance becomes 1/4th
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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
- The horizontal range and the maximum height of a projectile are equal
- Unit of electrical conductivity is
- A thin rod of length L and mass M is bent at its midpoint into two halves
- In circular coil, when number of turns is doubled and resistance becomes 1/4th
- An engine has an efficiency of 1/6. When the temperature of sink is reduced
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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