Electromagnetic Forces Review Crossword

2. The strength of a magnetic field increases when current increases and decreases when current decreases.
7. A coil of wire with a current running through it that strengthens the magnetic field in the center and has north and south poles.
8. The scientist who discovered that an electric current produces a magnetic field when a compass needle changed direction near a wire.
10. Moving electricity that produces a magnetic field when it flows through a wire.
13. A device whose needle changes direction when near a current-carrying wire because of a magnetic field.
14. An area around a wire or magnet that has direction and strength and can be turned on or off by controlling current.
15. A substance that becomes a magnet when exposed to a magnetic field (iron, nickel, cobalt).

1. A wire with electricity flowing through it that produces a magnetic field around it.
3. The relationship between electricity and magnetism.
4. The direction of a magnetic field depends on the direction of the electric current.
5. Winding coils closer together increases the magnetic field strength.
6. A magnetic field produced by current that disappears when the current is turned off.
9. A solenoid with a ferromagnetic core that produces a stronger magnetic field than a solenoid alone.
11. A method to determine magnetic field direction by pointing the thumb in the direction of current and the fingers curl in the direction of the magnetic field.
12. A wire shaped into a loop that increases the strength of the magnetic field inside the loop.