A current of 7.79 A in a solenoid of length 10.6 cm creates a 0.201 T magnetic field at the center of the solenoid. How many turns does this solenoid contain? turns :

Respuesta :

Answer:

Therefore,

2178 number of turns are there in Solenoid.

Explanation:

Given:

Current, I = 7.79 A

Length of Solenoid,

[tex]L =10.6\ cm=\dfrac{10.6}{100}=0.106\ meter[/tex]

magnetic field at the center of the solenoid,

B = 0.201 Tesla

To Find:

N = ? turns

Solution:

Magnetic field at the center of the solenoid is given as,

[tex]B=\dfrac{\mu_{0}\times N\times I}{L}[/tex]

Where,

B = Magnetic Field,

N = Number of turns,

I = Current,

L = Length of Solenoid

[tex]\mu_{0}=permeability\ of\ free\ space=4\pi\times 10^{-7}\ H/m[/tex]

Substituting the values we get

[tex]N=\dfrac{B\times L}{\mu_{0}\times I}[/tex]

[tex]N=\dgrac{0.201\times 0.106}{4\pi\times 10^{-7}\times 7.79}=2177.58[/tex]

[tex]N\approx 2178\ turns[/tex]

Therefore,

2178 number of turns are there in Solenoid.