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7th ISB Electricity

QuestionAnswer
Ohms Law resistance is equal to the voltage divided by the current
electric current the continuous flow of electric charges through a material
Ampere the amount of charge flowing past a given point each second
electric circuit complete unbroken path through which electric charges can flow
open circuit a broken circuit that interupts an electric current.
conductor a material through which an electric current can flow easily
insulator a material through which an electric current can not easily flow
voltage the difference in electrical potential energy between two places in a circuit.
Volt the measure of voltage
resistance the measure of how difficult it is for charges to flow through a material
ohm the unit of measure for resistance
factors that affect resistance type of material wire is made of, length of wire, diameter of wire, temperature of wire
voltage equals current times resistance
features of an electrical circuit, it.. has devices that run by electrical energy, a source of electrical energy, is connected by conducting wires
series circuit only one path for the current to take
ammeter device to measure current
chemical energy energy stored in chemical compounds
electrochemical cell a device that transforms chemical energy into electrical energy. can be stacked to form a battery
terminal part of the battery above the electrolyte
electrolyte substance that conducts electric current.
wet cell battery the electrolyte is liquid in the battery
dry cell battery the electrolyte is a paste in the battery
Parallel circuit provides several paths for the flow of electrons.
ion a charged atom
static electricity electricity that is not moving
electron flow in a circuit shows the flow from the negative to positive terminals
conventional electric flow in a circuit runs counter to the electron flow from positive to the negative terminals
Created by: bobolinx
 

 



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