'Q-S: Fill in the following blanks: 1 - The silicon-controlled rectifier (SCR) can be triggered on by a at the gate and turned off by reducing the below the specified 2- The can conduct current in either direction and is turned on when is exceeded. It turns off when the current drops below the holding value: 3 of unijunction transistor (UJT) determines the voltage at which the device will trigger on 4 The voltage at which device enters the forward-blocking region. 5- a three-terminal single pn junction device that exhibits negative resistance characteristic .
6- The Schottky barrier (hot-carrier) diode has lower larger reverse saturation current, and a smaller PIV than the conventional p n junction variety_ It can also be used al higher frequencies because of the reduced 7- The is capable of converting light energy in the form of photons into
electrical energy in the form of a difference in potential or voltage.
8- A photoconductive cell is one whose terminal resistance exponentially with an in incident light. 9 emits a beam ol radiant flux when forward-biased. 10-LCDs have a LEDs, but their lifetime is and they require an internal Or external'
