The positive lead of a diode is the cathode.

More Questions from Diodes and Applications

• A reverse biased diode will act as an open switch.
• Doping semiconductive material is the process of putting a small amount of pentavalent or trivalent atoms in with tetravalent atoms.
• The barrier potential is the small difference of potential created by positive and negative ions on either side of the depletion region.
• If a bridge rectifier is used, it is not necessary to use a transformer.
• A common problem with rectifiers is open diodes.
• Reverse biasing a pn junction allows the flow of majority current.
• Breakdown voltage and peak inverse voltage are the same.
• A diode can be tested with an ohmmeter.
• It is not possible to use a half-wave rectifier circuit without a transformer.
• Electrons in the conduction band are the only ones that are included in the electron current flow.

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