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To turn on a diode
a large forward bias is required
a large reverse bias is required
a small forward bias is required
a small reverse bias is required
6 cycles of an AC sine wave are applied to a forward biased diode in series with the output from a transformer. What would the output from the diode look like?
12 positive pulses
12 negative pulses
6 positive pulses
6 negative pulses
A capacitor can be connected between the output from the rectification diode and earth. The purpose of this diode is:
to remove noise from the positive line
to smooth the pulsed DC output
to form a resonant circuit with the secondary of the transformer
To prevent the diode from being damaged
Some diodes are designed to create light when current flows them. Thes are known as:
Rectification diodes
Zenor diodes
Varicap diodes
LEDs
Some diodes are designed to vary their capacitance when current flows them. Thes are known as: