Multiple choice

A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0 to 20 A in 0.5 s, what is the change of flux linkage with the other coil?

  1. 0.0375 Wb

  2. 26.66 Wb

  3. 13.33 Wb

  4. 30 Wb

  5. 0.075 Wb

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Δ (NΦ) = MΔ I1 = 1.5 x (20 – 0) = 30 Wb