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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
- A body of mass 3 kg is under a constant force which cause a displacement
- Which of the following are mechanical waves?
- A man throws balls with the same speed vertically upwards one after the other
- In a potentiometer experiment, the balancing with a cell is at length 240 cm.
- A body undergoes no change in volume. Poisson’s ratio is
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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