| ⇦ | 
| ⇨ |
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: - Consider two particles of different masses. In which of the following situations
- Newton postulated his corpuscular theory on the basis of
- A particle moves in a straight line with a constant acceleration
- A particle of mass m, charge Q and kinetic enery T enters a transverse
- A proton and helium nucleus are shot into a magnetic field at right angles to the field
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Consider two particles of different masses. In which of the following situations
- Newton postulated his corpuscular theory on the basis of
- A particle moves in a straight line with a constant acceleration
- A particle of mass m, charge Q and kinetic enery T enters a transverse
- A proton and helium nucleus are shot into a magnetic field at right angles to the field
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