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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
- On observing light from three different stars P, Q and R, it was found that intensity
- The temperature coefficient of the resistance of a wire is 0.00125 per ⁰C.
- Kepler’s third law states that square of period of revolution (T) of a planet
- A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour
- An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
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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