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A solenoid of length l metre has self inductance L henry. If number of turns are doubled, its self inductance
Options
(a) Becomes 2 L henry
(b) Becomes 4 L henry
(c) Remains same
(d) Becomes L/√2 henry
Correct Answer:
Becomes 4 L henry
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Subject: Physics
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- A circuit contains an ammeter, a battery of 30 V and a resistance 40.8 ohm
- Number of spectral lines in hydrogen atom is
- The upper half of an inclined plane of inclination θ is perfectly smooth while lower
- Two slits in Young’s experiment have widths in the ratio 1:25. The ratio of intensity
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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The formula to be used here is that :L= N^2(A)/l.
now ,N=2.
therefore, L’=2^2(A)/l
=> L’/L = 4/1
=> L’= 4L henry