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The time period of bar magnet is doubled when magnetic field is reduced by same amount. If initial magnetic field is 0.4 x 10⁻⁴ T then find out decrease in the magnetic field
Options
(a) 0.12 x 10⁻⁵
(b) 0.3 x 10⁻⁴
(c) 0.4 x 10⁻⁵
(d) 12 x 10⁻⁵
Correct Answer:
0.3 x 10⁻⁴
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - One milligram of matter on convertion into energy will give
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- A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane
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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
- One milligram of matter on convertion into energy will give
- The dual nature of light is exhibited by
- A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane
- Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
- A proton is projected with a speed of 3×10⁶ m/s horizontally from east to west.
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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