51701. The movement of free electrons in a semiconductor material is termed electron voltage.
51702. A silicon diode measures a low value of resistance with the meter leads in both positions. The trouble, if any, is
51703. Single-element semiconductors are characterized by atoms with ____ valence electrons.
51704. Under normal conditions a diode conducts current when it is
51705. A diode conducts when it is forward-biased, and the anode is connected to the ________ through a limiting resistor.
51706. As the forward current through a silicon diode increases, the internal resistance
51707. Refer to this figure. If VIN increases, IZ will
51708. What kind of diode is formed by joining a doped semiconductor region with a metal?
51709. Refer to this figure. Which symbol is correct for a zener diode?
51710. Which diode employs graded doping?
51711. Refer to this figure. Identify the Schottky diode.
51712. LEDs are made out of
51713. The normal operating region for a zener diode is the
51714. Refer to this figure. If VIN attempts to increase, VR will
51715. An LED is forward-biased. The diode should be on, but no light is showing. A possible trouble might be
51716. A 6.2 V zener is rated at 1 watt. The maximum safe current the zener can carry is
51717. Refer to this figure. Find the tunnel diode symbol.
51718. Refer to this figure. If the load current increases, IR will ________ and IZ will ________.
51719. The process of emitting photons from a semiconductive material is called
51720. An 8.2 V zener has a resistance of 5. The actual voltage across its terminals when the current is 25 mA is
51721. What diode operates only with majority carriers?
51722. Refer to this figure. Which symbol is correct for a photodiode?
51723. What type of diode maintains a constant current?
51724. What diode is used in seven-segment displays?
51725. Refer to this figure. If VIN decreases, IR will
51726. Zener diodes with breakdown voltages greater than 5 V operate predominantly in what type of breakdown?
51727. Back-to-back varactor diodes are used for what reason?
51728. A tunnel diode is used
51729. What type of diode is commonly used in electronic tuners in TVs?
51730. A laser diode normally emits
51731. A varactor is a pn junction diode that always operates in ________-bias and is doped to ________ the inherent capacitance of the depletion region.
51732. The forward voltage across an LED is typically 0.7 V.
51733. A photodiode is used in a reverse-bias position, and it will increase conduction as the light intensity increases.
51734. A tunnel diode has a negative-resistance characteristic.
51735. Two types of reverse breakdown in a zener diode are avalanche and zener.
51736. Schottky diodes are used primarily in high-frequency and fast-switching applications.
51737. OLEDs can be sprayed onto a substrate using an inkjet printer.
51738. When no light is emitted from an LED, the forward current is almost negligible and is called the dark current.
51739. With varactor diodes, junction capacitance varies with the amount of forward-bias voltage.
51740. The ability to keep the reverse current essentially constant is the key feature of the zener diode.
51741. An LED emits light when forward-biased.
51742. The regulating ability of zener diodes depends on their ability to operate in a forward-bias condition.
51743. Schottky diodes are also known as
51744. Zener diodes with breakdown voltages less than 5 V operate predominantly in what type of breakdown?
51745. The Schottky diode is used
51746. You have an application for a diode to be used in a tuning circuit. A type of diode to use might be
51747. Refer to this figure. Which symbol is correct for an LED?
51748. Refer to the given figure. This circuit is a setup for
51749. A(n) ________ amplifier is a differential voltage-gain device that amplifies the difference between the voltages existing at its two input terminals.
51750. Refer to given circuits. Which circuit is known as a voltage-to-current converter?