Question

Faraday discovered that a current could be induced in a solenoid (a coil of wire) when _____.

Answer 1

Faraday discovered that a current could be induced in a solenoid (a coil of wire) when "a magnetized rod is being moved through the coil"

Hope this helps!

Answer 2

I would agree. the answer would be a magnetized rod is being moved through the coils