Semiconductor Diodes

Front

An ideal diode conducts when a voltage of 0.6V is applied in the forward-biased direction.

Back

The acceptable voltage range for conduction is 0.6V ≤ V ≤ 0.8V.

Front

In a forward-biased diode, conventional current flows from positive to negative.

Back

In reverse-biased, no current flows.

Front

Connecting a diode correctly in a circuit is crucial.

Back

There is usually a line on the diode surface corresponding to the line in the symbol.

Front

The voltage required for a diode to conduct in forward bias

Back

0.6V

Front

Voltage across a forward-biased diode

Back

Remains at 0.6V

Front

The bulb is not lit because diodes D1 and D2 are reverse-biased and do not conduct.

Back

Diagram of a circuit with reverse-biased diodes D1 and D2, and a bulb.

Front

The voltmeter across the diode reads 0.6V, and the voltmeter across the bulb reads 8.4V.

Back

Diagram of a circuit with a voltmeter across a forward-biased diode and a bulb.

Front

The voltmeter across the diode reads 0.5V, and the voltmeter across the bulb reads 0V.

Back

Diagram of a circuit with a voltmeter across a diode with insufficient voltage and a bulb.

Front

Forward-biased diode

Back

A diode that allows current to pass through, lighting the bulb.

Front

Effect of reverse-biased diodes on a circuit

Back

Prevents current flow, keeping the bulb unlit.