Question
Question: Two identical coaxial coils P and Q carrying equal amount of current in the same direction are broug...
Two identical coaxial coils P and Q carrying equal amount of 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 increases
D
Both P and Q decreases
Answer
Both P and Q decreases
Explanation
Solution
When the coils P and Q are brought nearer the magnetic flux linked with each coil will increase and so the induced current will try to decrease the flux and hence current in both P and Q decrease.