Question

1. as the permeability decreases, inductance

halves the frequency

stays the same

increases

decreases

Explanation:

Step1: Recall the formula for inductance

The formula for inductance \(L=\frac{\mu N^{2}A}{l}\), where \(\mu\) is permeability, \(N\) is the number of turns, \(A\) is the cross - sectional area, and \(l\) is the length of the coil.

Step2: Analyze the relationship between permeability and inductance

From the formula \(L=\frac{\mu N^{2}A}{l}\), we can see that \(L\) is directly proportional to \(\mu\) (assuming \(N\), \(A\), and \(l\) are constant). That is \(L\propto\mu\).

Answer:

d. decreases