Circuit Forward characteristic Reverse characteristic.

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Presentation transcript:

Circuit Forward characteristic Reverse characteristic

A V A + _ d.c. voltage supply Ammeter Voltmeter Diode previous next smart

Potential Difference (volts) Current (m A) A V mA 0.0V 0mA 0.2V0.4V0.5V0.6V0.7V mA38mA 120 mA + _ Current (I) in Amps p.d. (V) in volts

P.D. (V) in volts previous next smart Lots of current flows because the diode has a low resistance when it is connected this way

Potential Difference (volts) Current (m A) P.D. (V) In volts A V 0mA 0.0V -0.2 V -0.4 V -0.5 V -0.6 V -0.7 V +_ No current flows because the diode has a very high resistance when it is connected the wrong way round

Forward characteristic Reverse characteristic Current (I) in mA p.d. (V) in volts previous next smart