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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
- A photocell employs photoelectric effect to convert
- A wheel has moment of inertia 5 x 10⁻³ kgm² and is making 20 revolutions per sec
- If |A x B|= √3 A.B , then the value of |A + B| is
- A series combination of resistor (R), capacitor (C), is connected to an AC source
- An electric motor operating on a 60 volt D.C supply draws a current of 10 amp.
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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