Discussion :: Inductors - General Questions (Q.No.21)
|Kirthikumar Rao said: (Nov 23, 2011)|
L=inductance of the coil
N=no of turns of the coil
as inductance is directly proportional to no of turns
|Deep Sandholia said: (Nov 26, 2013)|
|Flux is directly proportional to no.of turns.|
|Dipak said: (Dec 2, 2014)|
|L = N^2/R.
L = INDUCTANCE.
N = NUMBER OF TURNS.
R = RELUCTANCE OF CORE.
|Eng. S.T.Arif said: (Apr 29, 2015)|
|Inductance (Physical property of a coil) L = U.N2.l.A.
U = Permeability of core,
N2 = NxN (Number of turns).
L = Length of coil.
A = Cross sectional area of coil.
So if to decrease L.
You decrease (remove of iron core).
Reduce N turns of coil.
Reduce length of coil.
The correct answer is not given in the question.
|Sandeshg said: (Jun 11, 2015)|
|Answers A, B are correct. Air core has less permittivity as compared to iron core hence lesser the permittivity lesser the inductance of the coil.|
|Svn said: (Jan 9, 2017)|
|Right answer is both A and B.|
|Deepak said: (Jan 19, 2018)|
|Haris said: (Jan 11, 2020)|
|L = (permiability)*(no of turns)^2*Area/Length.
L = u*N^2 * A/length.
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