MHT CET202526 Apr 2025Morning ShiftPhysicsElectromagnetic InductionActual
When magnetic flux changes from 6.5 10⁻² ~Wb to 11 10⁻² ~Wb and the change in current is 0.03 A , the coefficient of mutual inductance will be
Options
- A1.0 H
- B1.2 H
- C1.5 H
- D1.8 H
Correct answer
C. 1.5 H
Step-by-step solution
The coefficient of mutual inductance relates the change in magnetic flux to the change in current through = M I . The flux increases from 6.5 10⁻² Wb to 11 10⁻² Wb , yielding a change of = (11 - 6.5) 10⁻² = 4.5 10⁻² Wb . With I = 0.03 A , the mutual inductance is M = I = 4.5 10⁻² 0.03 = 1.5 H This value corresponds to option C .