일반물리학 2 — Induction and Inductance: Problem 17

17 Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at the rate \( 21.0 \text{ A/s} \), the emf in coil 1 is \( 25.0 \text{ mV} \). (a) What is their mutual inductance? (b) When coil 2 has no current and coil 1 has a current of \( 1.35 \text{ A} \), what is the flux linkage in coil 2?