# physics electricity

 The flashcards below were created by user nicolehwj on FreezingBlue Flashcards. Electricity is produced by ___ Electric current which requires power source and wires Series and Parallel circuits Seriescurrent flow is the samesingle loop Parallel current flow may be different, current flowing through each branch is lower than the current from source Current Rate of flow of electric chargemeasured in A amperes using a ammeter must be connected in a seriesrecorded to 2 decimal placesV/R= I (current = voltage/resistance). Voltage amount of energy needed to move one unit charge of electricitymeasured in volts (V) using voltmetermust be in a parallel circuitrecorded to 2 decimal placesV= R/ I ( resistance/ current = voltage). resistance resist the flow of currentin ohms Ω V / I = R (voltage / current = resistance). total resistance in seriesRT= R1+R2+R3... Total resistance in parallel Power P= voltage*current measured in watts Electrical energy electrical energy= power (watts) * time (seconds)or voltage* current * timeMeasured in joules J energy consumed and Cost of electricity 1000W = 1kWenergy consumed(kWh) = power(kilowatt/ kW)* time(hour)Cost = energy consumed(kWh) * cost per unit Hazards Frayed wire - insulation torn. Electric shock Overloading - Fire using wet appliances - Electric shock why is fuse near the live wire? live wire is of high voltage. if it goes over the voltage, the fuse will melt, thus it will be a open circuit with no electric current flowing Chemical effects electrolysis electroplating electrolysisdecomposition of compound by an electric currentused to break down water into hydrogen and oxygenoxygen at positive and hydrogen at negative electroplatingused to coat an object with a thin layer of material usually metal so that appearances are improved or to protect it from corrosionmaterial is at positive Authornicolehwj ID38413 Card Setphysics electricity Descriptionphysics electricity Updated2010-09-29T17:46:46Z Show Answers