Question
Physics Question on Electromagnetic Oscillations and Alternating Current
Two identical coaxial coils P and Q carrying equal current in the same direction are brought nearer. The current in:
A
P increases while in Q decreases
B
Q increases while in P decreases
C
Both P and Q increase
D
Both P and Q decrease
Answer
Both P and Q decrease
Explanation
Solution
When two current-carrying coils are brought closer, their mutual inductance increases, and the self-inductance opposes the increase in magnetic flux, resulting in a decrease in current in both coils.