Question

Solenoid is 1.5 m long and its inner diameter is 4.0 cm. it has 3 layers of windings of 1000 turns each and carries a current of 2.0

a. the magnetic flux for a cross-section of the solenoid is nearly

Answer 1

hope it will help you

Answer 2

$\large\underline\mathrm\red{Given:-}$

n = 1000

i = 2A

r = 2 × 10^-2 m

L = 1.5 m

$\large\underline\mathrm\red{Solution}$

• Magnetic flux is a a measure of the quantity of magnetism, the strength and extent of magnetic field.

Theta = nBA

Where n is number of turns, B is magnetic field and A is area.

$\large\underline\mathrm\red{Now}$,

magnetic field B .

B = u,0 ni / l

Theta = u0 n²iA / l

3 × 10^-7 × 4π × 1000² × 2 × π(2 × 10^-3)² / 1.5

Theta = 6.31 × 10^-3 Wb

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