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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 solid sylinder of mass 3 kg is rolling on a horizontal surface with velocity 4 ms⁻¹
- Two cells when connected in series are balanced on 8m on a potentiometer.
- The displacement ‘x’ (in meter) of a particle of mass ‘m’ (in kg) moving in one
- A ray of light travelling in a transparent medium of refractive index µ, falls on surface
- What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω
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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