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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.
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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
- The mirrors are inclined at an angle of 50⁰. The number of images formed for an object
- A nucleus of uranium decays at rest into nuclei of thrrium and helium. Then
- To what temperature should the hydrogen at room temperature (27°C) be heated at constant
- A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
- For a wave propagating in a medium, identify the property that is independent
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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