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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.
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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
- An electron in potentiometer experiences a force 2.4×10⁻¹⁹N. The length of potentiometer
- The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
- A particle with charge q is moving along a circle of radius R with unoform speed v.
- The horizontal component of earth’s magnetic field at a place is 3×10⁻⁴ T
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
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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