Recall that when two conducting objects at different potentials are connected by a conducting wire, charge flows from the object at a higher potential to the one at a lower potential until the potentials are equal. This flow of charge is called electric current. In order to keep charge flowing, a potential difference must be maintained. This can be accomplished by “pumping” electrons back to their original source. This “electron pump” would, of course, require external energy to run. What are examples of this type of electron pump? battery, wall outlet, generator, solar cell

Electric current is defined as the charge that flows through a conductor per unit time. (I = q/t). A flow of 1 Coulomb per second is a current of 1 Ampere. (1 amp) When electric current is created in a circuit, the amount of current that flows through a conductor depends on the make-up of the conductor. All conductors are said to have resistance. (that is, they resist the flow of current). What determines the resistance of a wire? what its made of , how long it is, how thick it is

Ω sick Ω work Ω run Ω Ω on the range Ωbre Ω page Ω-depot Ωie Ω less A device designed specifically to resist the flow of current is called a resistor. A resistor converts the energy of the electric current to other forms of energy such as heat and light. The unit for resistance is the ohm (Ω). Ω sick Ω work Ω run Ω Ω on the range Ωbre Ω page Ω-depot Ωie Ω less power source wires device that converts the electric energy to other forms battery, wall outlet, generator, solar cell conductors that carry the current (generally aluminum or copper) resistors, motors, etc.

Answers  1) 240 ohms   2) 0.40 amps 3) 115 Volts 4) halved