Question

An iron ring with a circular cross section of 3.5 cm diameter and a mean circumference of 80 cm is
wound with a coil of 400 turns. For an exciting current of 2.5A in the coil, the flux is found to be
0.9mWb. Calculate the relative permeability of iron.

Answer 1

Answer:

1/5

Explanation:

Add up the total number of jellybeans, 20 + 45 + 30 + 5 = 100.

Divide the number of watermelon jellybeans by the total: 20/100 and reduce the fraction to 1/5.