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Difference Between Voltage & Current

 


Comparison Chart

Basis for ComparisonVoltageCurrent
DefinitionDifference between two points of an electric fieldThe flow of charges between two points
UnitVoltAmpere
SymbolVI
Formulavotlage-equationcurrent-equation
Field CreatedMagnetic FieldElectrostatic Field
TypesAlternating voltage & Direct voltageAlternating Current and Direct Current
PolarityAlternating voltage changes, but the direct voltage can not change its polarity.Alternating current changes its polarity but the polarity of the direct current remains constant.
ProducesAlternatorVoltage
Measuring instrumentVoltmeterAmmeter
Charges1 Volt = 1 Joule/ Coulomb1 Amperes = 1 coulomb /second
Series ConnectionUnequal in all the componentsEqually distributed in all the component
Parallel ConnectionThe magnitude of voltage remains same in all the componentThe magnitude of current vary in all the components.
LossDue to impedanceDue to passive elements
RelationIt is the cause of the currentIt is the effect of the voltage

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