(AC) electric current in which the charges continually switch from flowing in one direction to flowing in the reverse direction
"a device that is made of several cells and that produces an electric current by converting chemical energy into electrical energy"
a device that produces an electric current by converting chemical energy into electrical energy
a complete, closed path through which electric charges flow
a method of charging an object that occurs when electrons are transferred from one object to another by direct contact
a material in which charges can move easily
a continuous flow of charge caused by the motion of electrons; the rate at which charge passes a given point; expressed in amperes (A)
"(DC) electric current in which the charges always flow in the same direction"
the loss of static electricity as charges move off an object
"the region around a charged particle that can exert a force on another charged particle"
the force between charged objects
"the rate at which electrical energy is used to do work; expressed in watts (W)"
the part of a cell through which charges enter or exit
in a cell, a mixture of chemicals that carries an electric current
"a method of charging an object that occurs when charges in an uncharged object are rearranged without direct contact with a charged object"
a material in which charges cannot easily move
Law of electric charges
"the law that states that like charges repel and opposite charges attract"
a device that uses electrical energy to do work
"the law that states the relationship between current (I), voltage (V), and resistance (R); expressed by the equation I = V/R"
a circuit in which different loads are on separate branches
the part of a solar panel that converts light into electrical energy
energy per unit charge; specifically, the difference in energy per unit charge as a charge moves between two points in an electric circuit (same as voltage); expressed in volts (V)
the opposition to the flow of electric charge; expressed in ohms (Ω)
a circuit in which all parts are connected in a single loop
the buildup of electric charges on an object
a device that converts thermal energy into electrical energy
"the difference in energy per unit charge as a charge moves between two points in an electric circuit (same as potential difference); expressed in volts (V)"