1800-150-456-789
FlagBACK
Flag IIT JEE Entrance Exam> self-inductance-of-the-solenoid...
question mark

If the number of turns per unit length of a coil of solenoid is doubled, the self-inductance of the solenoid will

(a) remain unchanged

(b) be halved

(c) be doubled

(d) become four times

Simran Bhatia , 11 Years ago
Grade 11
anser 2 Answers
Hrishant Goswami

Last Activity: 11 Years ago

(d)

        Self inductance of a solenoid =(µAn^2)/l

        So, self induction  proportional to n2

So, inductance becomes 4 times when n is doubled.

vedha prabhu

Last Activity: 6 Years ago

MAKE ALL THE PARAMETERS CONSTANT AS 1ASSUME THAT 
L IS DIRECTLY PROPORTIONAL TO N^2 i.e L =N^2
IF N=4 THEN L=4^2 = 16(x)
IF2N=2x4=8 THEN L= 8^2 =64(4x)
IF N IS DOUBLED THEN L WILL BE QUAD

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on iit jee entrance exam

question mark
My rank is 29k, General, should I opt for any state college cse branch or some Nits in which in which I am getting ECE , chemical, mechanics etc....
 
iit jee entrance exam
0 Answer Available

Last Activity: 2 Years ago

question mark
How is Ranquer Eduzone,comparing, Akash,Fitjee,Resonance,Naryana
iit jee entrance exam
0 Answer Available

Last Activity: 2 Years ago

question mark
Can class 9th students study syllabus class  of 11th 
iit jee entrance exam
3 Answers Available

Last Activity: 3 Years ago

question mark
Sum of series 2[n/2] ! [n/2]!/ n! [2Co-2C2+3C2....+[-1]^n[n+1]2Cn] where n is an even positive integer. Kindly provide solution of this question and how to generalise this. How do we know that which expansion will give this?
iit jee entrance exam
1 Answer Available

Last Activity: 3 Years ago

question mark
I m foreigner,How much mark i need to get into IIT?? 
 
iit jee entrance exam
1 Answer Available

Last Activity: 3 Years ago