Physics: If a solenoid has the length of 10 cm and has 2000 turns what is the electric current required to create a magnetic field inside of a solenoid of 0.4t.

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If a solenoid has the length of 10 cm and has

emmaja121003

31.12.2021

15.92 A

Explanation:

L = length of the solenoid = 10 cm = 0.10 m

N = Number of turns of the solenoid = 2000

B = magnitude of magnetic field inside the solenoid = 0.4 T

i = magnitude of electric current in the solenoid

Magnetic field inside the solenoid is given as

$B = \frac{\mu _{o}Ni}{L}$

$0.4 = \frac{(12.56\times 10^{-7})(2000)i}{0.10}$

i = 15.92 A

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