Question

What is needed for electromagnetic induction?

Answer 1

Answer:

One requirement for this electromagnetic induction to take place is that the conductor, which is often a piece of wire, must be perpendicular to the magnetic lines of force in order to produce the maximum force on the free electrons. ... The magnetic field will be strongest inside the bar and at its ends (poles).

Answer 2

To create electromagnetic induction, you need a magnet that moves in front of a conductive loop (or many such loops, like a solenoid), or a loop that moves in front of a magnet. More generally, you need a magnetic field varying in front of a wire.

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