In a bar magnet spreads out from one pole and curve around to the other?

What does every magnet have ?

When magnet poles are unlike they?

The armature spins continuously in a what?

To change the direction of current in a motor, current is conducted

Which of the following uses direct current?

If you use a stronger ferromagnet (nail) in the core, you will increase what?

As Earth's magnetic poles move, the magnetic declination in a given location will do what?

A magnetic field is produced when there is what?

How is electric current from a generating plant transmitted?

A maglev (monorail) train floats above its rails due to what?

A galvanometer is a device that measures small what?

An alternating currents is induced when a wire moves up or down repeatedly in a what?

What does a step-up transformer increase?

What's a strong magnet that can be turned on and off?

Where is the magnetic effect the strongest?

What acts as a giant magnet?

Magnets are attract to what metal?

What is electromagnetic induction?

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