1. Tardigrade
  2. Question
  3. Physics
  4. In a transformer, the coefficient of mutual inductance between the primary and the secondary coil is 0.2 H. When the current changes by 5 A / s in the primary, the induced e.m.f. in the secondary will be

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. In a transformer, the coefficient of mutual inductance between the primary and the secondary coil is $0.2\, H$. When the current changes by $5\, A / s$ in the primary, the induced e.m.f. in the secondary will be

Electromagnetic Induction

Solution:

$|e|=M \frac{d i}{d t}=0.2 \times 5=1\, V$