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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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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body is rolling down an inclined plane.If KE of rotation is 40% of KE in a translatory
- In an NPN transistor the collector current is 24 mA. If 80% of the electrons
- The potential energy of particle in a force field is U = A/r² – b/r, where A and B
- The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
- A layer of glycerine of thickness 1 mm present between a large surface area of 0.1 m².
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
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