Electricity & Magnetism Task 1

7. force field surrounding magnetic objects. Measured in units of teslas (T).
9. difference in the electric potential between two locations.
10. flow of electric charges, usually in wires or other conductors. Measured in amperes (A).
11. opposition that a conducting material or device offers to resist the flow of current. Measured in ohms (Ω).
13. property of a material that describes its ability to exert a force on a magnet or a magnetic material.
14. electric circuit with a break that prevents electricity from flowing through it. The opposite of a closed circuit.
17. property of a material or object to attract other objects made out of iron, magnetite, or steel.
22. electrical potential energy per unit charge for an electric field.
23. study of electric charges at rest.
24. device with two parallel conducting plates separated by a narrow gap usually filled with an insulating material.
26. two regions in a magnetic field, called magnetic north and south poles, that produce the strongest magnetic force.
27. electrical device that resists the flow of electric current.
28. current in an electric circuit is proportional to the voltage applied and inversely proportional to the resistance, or I = V/R.
29. sum of the voltage drops (voltage differences) around a closed loop equals zero.
30. measure of the ability of a capacitor (or other conductor) to store electric charge.

1. total or combined resistance of a circuit with more than one resistor. Also called the effective resistance.
2. amount of electrical potential energy that each unit of electric charge has. Also called potential difference. Measured in volts (V).
3. force exerted on an object in a magnetic field.
4. buildup of electrical charge, either positive or negative, on the surface of an insulating material.
5. the arrows that depict the direction of the magnetic force in a magnetic field.
6. vector arrows that depict visually the direction and magnitude of an electric field.
8. material, such as a metal, that offers low resistance to the flow of electric current.
12. one of two types of electric charge. See also positive charge.
15. electric circuit where the resistance is very low or near zero, resulting in high current flow that exceeds the circuit’s design limits and can damage the components.
16. electrical device that has a complete or continuous path that electricity can flow through.
18. SI unit for electric charge.
19. flow of electric current through a conductor, such as a wire.
20. symbol used to represent a component of a circuit in a circuit diagram.
21. device that transforms or converts chemical energy into electrical energy or electric current.
25. fundamental force that charged objects exert on each other.