| ⇦ | 
| ⇨ |
A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid of length 12 cm having 60 turns in order to demagnetise it. The amount of current that should be passed through the solenoid is
Options
(a) 16A
(b) 8A
(c) 4A
(d) 2A
Correct Answer:
8A
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - The magnetic susceptibility does not depend upon the temperature in
- A simple pendulum has a time period T₁ when on the earth’s surface and T₂ When taken
- One solid sphere A and another hollow sphere B are of same mass and same outer radii.
- In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency
- A single slit Fraunhogger diffraction pattern is formed with white light.
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnetic susceptibility does not depend upon the temperature in
- A simple pendulum has a time period T₁ when on the earth’s surface and T₂ When taken
- One solid sphere A and another hollow sphere B are of same mass and same outer radii.
- In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency
- A single slit Fraunhogger diffraction pattern is formed with white light.
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
Leave a Reply