DEE20023 - REVISION TOPIC 2

What is the function of diode in electronic circuit?

• To limit current

• To store charge

• To allow current flow in only one direction

• To allow current in both direction

This picture shows a diode in _________bias.

• forward

• reverse

• positive

• negative

Threshold voltage for germanium diode is _________

• 0.2V

• 0.3V

• 0.7V

• 0.8V

Threshold voltage is ______________

• the amount of current through the diode when the diode is reverse biased

• the maximum forward voltage when diode starts to conduct current

• the minimum forward voltage when diode starts to conduct current

• the minimum reverse voltage to make the diode conduct in reverse

The schematic circuit shown is a __________

• half-wave rectifier circuit

• bridge rectifier circuit

• full-wave rectifier using center-tapped transformer

• 4 diode circuit

What is the output waveform of the circuit shown?

• 
• 
• 
• 

Referring to this rectifier circuit, which diode is forward biased during positive half cycle of the input?

• D3 and D4

• D2 and D3

• D1 and D2

• D1 and D4

What is the output waveform for the rectifier circuit shown?

• 
• 
• 
• 

What is the value of threshold voltage for silicon diode?

• 0.3V

• 0.4V

• 0.6V

• 0.7V

What is the function of rectifier circuit?

• To convert DC signal to AC signal using diodes

• To convert analog signal to digital signal

• To convert AC signal to DC signal using diodes

• To convert digital signal to analog signal