Is it true that if two coils are connected and if Coil A is disconnected from the battery then galvanometer connected to coil B shows deflection?

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Detailed Solution

The above statement is true.
If coil A is disconnected from the battery, then the pointer of the galvanometer moves but to the opposite side and quickly returns to zero, indicating a momentary current in coil B. however, this current flows in the opposite direction in Coil B. As long as the current constantly flows in coil A, the galvanometer connected with coil B shows no deflection. When no current flows in coil A, the galvanometer connected to coil B will show zero or no deflection. When the current flows through coil A, the galvanometer pointer jumps to one side and returns to zero, indicating a momentary current in coil B.
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