| ⇦ | 
| ⇨ |
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: - A person has a minimum distance of distinct vision as 50 cm. The power of lenses
- For a simple pendulum performing simple harmonic motion, the time period
- Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
- Dispersion of light is caused due to
- An electron of mass m and a photon have same energy E. The ratio of de-Broglie
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A person has a minimum distance of distinct vision as 50 cm. The power of lenses
- For a simple pendulum performing simple harmonic motion, the time period
- Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
- Dispersion of light is caused due to
- An electron of mass m and a photon have same energy E. The ratio of de-Broglie
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