Across
- 1. interaction of electric currents (or fields) and magnetic fields.
- 4. a source of electric power consisting of one or more electrochemical cells
- 5. the difference in electric potential between two points
- 9. rotating part of an electric motor containing electromagnets.
- 10. to develop a magnetic field in an object in response to applying an external magnetic field.
- 11. coil of wire, usually cylindrical, that uses electric current to create a magnetic field.
- 12. machine that transforms or converts electrical energy into mechanical energy.
- 13. scientific instrument used to measure the masses of individual atoms in a gas using the force exerted on them in a uniform magnetic field.
- 14. electric circuit where the electric current has only one path.
- 17. instrument used to detect very small electric currents by detecting the magnetic force on a loop of wire.
- 18. the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge.
- 20. two or more positions in an electric field that have the same electric potential.
- 23. measure of the strength of a magnetic field through an area.
- 24. one of two types of electric charge
- 27. electric circuit with a break that prevents electricity from flowing through it.
- 28. instrument to measure the voltage, or potential difference, across one or more components of a closed circuit.
- 29. property of a material that describes its ability to exert a force on a magnet or a magnetic material.
- 30. condition of a system that describes opposing physical characteristics.
- 31. a type of substance, such as iron, that experiences strong magnetic forces when in the presence of a magnet.
Down
- 2. fundamental property of matter that comes in two varieties we call positive and negative.
- 3. device that increases or decreases voltage in AC circuits in order to minimize energy lost during transmission
- 6. cylindrical coil of wire attached to the loudspeaker cone and moves in and out in response to a varying electrical signal passing through the wire
- 7. electric circuit where the resistance is very low or near zero
- 8. machine that transforms or converts electrical energy into mechanical energy.
- 15. flow of electric charges, usually in wires or other conductors.
- 16. device attached to the armature of a motor (or generator) that provides an electrical connection and allows the direction of current to be changed periodically during the rotation of the motor.
- 19. one of two types of electric charge
- 21. a passive two-terminal electrical component that implements electrical resistance as a circuit element.
- 22. unit of electric potential and electric potential difference
- 25. field that exerts a force on objects in it.
- 26. SI unit for electric charge.