Question

A solenoid of 200 turns carrying a current of 2 A has a length of 25 cm. What is the magnitude of the magnetic field at the center of the solenoid?

Answer 1

Answer:

Explanation:

For magnetic field in a solenoid , the formula is

B = μ₀ n I

Where n is number of turns per unit length and i is current

Putting the values

B = 4π x 10⁻⁷ x (200 / .25) x 2

= 2.00 x 10⁻³ T