Question

A straight cylindrical solenoid has a flux of 12mwb and a flux density of 0.9T. The diameter of solenoid must be​

Answer 1

Answer:

13cm

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Answer 2

Answer:

The diameter of the solenoid will be 0.13m

Explanation:

here in this question, we will directly use the formula which shows the relation between flux, flux density, and area,

so our formula that we will use in the question is,

magnetic flux(Ф)=magnetic field(B).(area)A

Ф=flux

B=flux density or magnetic field

A=area

given,

Ф=12 x 10 B=0.9T

A=12x $10^{-3}$/0.9=1.33 x $10^{-2}$$m^{2}$

π$r^{2}$=1.33 x $10^{-2}$

r=$\sqrt{1.33 X 10^-2/3.14}$

r=0.065m

diameter=2r=2 x 0.065=0.13m