Two identical 750 turn coils 𝐴 and 𝐵 lie in parallel planes. A current changing at the rate of 1500 𝐴/𝑠 in 𝐴 induces an emf of 11.25 𝑉 in 𝐵. If the self-inductance of each coil is 15 mH, then the percentage of the flux produced in coil 𝐴 which links the turns of 𝐵 will be:
A. 40 %
B. 50 %
C. 60 %
D. 70 %
Answer:B
Two identical 750 turn coils 𝐴 and 𝐵 lie in parallel planes. A current changing at the rate of 1500 𝐴/𝑠 in 𝐴 induces an emf of 11.25 𝑉 in 𝐵. If the self-inductance of each coil is 15 mH, then the percentage of the flux produced in coil 𝐴 which links the turns of 𝐵 will be:
A. 40 % B. 50 % C. 60 % D. 70 %