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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
- In circular coil, when number of turns is doubled and resistance becomes 1/4th
- Electrons in a certain energy level n=n₁, can emit 3 spectral lines. When they
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
- A charge of 100 μC has a potential at a distance of 9 m is
- A particle of mass 1.96×10⁻¹⁵ kg is kept in equilibrium between two horizontal metal
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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