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Electricity (electrical charge / current (electric current - the rate of…
Electricity
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resistance
the greater the resistance across a component the smaller the current that flows for a given voltage
the current through an ohmic conductor is directionally proportional to the voltage across the resistor, this means that the resistance remains constant as the current changes
as the current increases the temperature of the filament increases so the resistance increases, this means less current can flow per unit pd
current will only flow through a diode in one direction, the diode has a very high resistance in the reverse direction
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