Diodes and Applications Questions

• A rectifying diode can change ac voltage to dc voltage.
• The positive lead of a diode is the cathode.
• 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.
• The name of the circuit in the given circuit is the ___.
• The peak inverse voltage (PIV) for the diode in the give circuit equals ___.
• The small amount of ac signal present on the output of a filtering network for a dc power supply is known as ________.
• The average value of the output voltage from the circuit in the given circuit equals ___.
• The small amount of ac signal present on the output of a filtering network for a dc power supply is known as ________.
• The average value of the half-wave rectified output voltage is approximately __________ of Vp.
• A pure semiconductor material ___ very well.
• A ___ is created when an electron moves from the valence band to the conduction band.