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A toroid having 200 turns caries a current of 1 A. The average radius of the toroid is 10 cm. The magnetic field at any point in the open space inside the toroid is
Options
(a) 4×10⁻³ T
(b) zero
(c) 0.5×10⁻³ T
(d) 3×10⁻³ T
Correct Answer:
zero
Explanation:
Magnetic field at any point in the open space inside the toroid is zero, because the amperean loop enclose net current equal zero.
Related Questions: - When a mass M is attached to the spring of force constant k,
- If a body travels half the distance with velocity v1 and the next half with velocity v2
- The turn ratio of a transformer is 1:2. An electrolytic dc cell of emf 2 volt is connected
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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
- When a mass M is attached to the spring of force constant k,
- If a body travels half the distance with velocity v1 and the next half with velocity v2
- The turn ratio of a transformer is 1:2. An electrolytic dc cell of emf 2 volt is connected
- Cathode rays are produced when the pressure is of the order of
- The output of an AND gate is connected to both the inputs of a NOR gate,
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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