A toroid having 200 turns carries a current of 1 A. The average radius of the toroid

⇦

⇨

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:

1. Two forces of magnitude 8N and 15N respectively act at a point so as to make the resultant force
2. In communication with help of antenna if height is doubled then the range
3. If the red light is replaced by blue light illuminating the object in a microscope
4. A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹
5. A metal rod of length l cuts across a uniform magnetic field B with a velocity v.

Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends