Exam 21: Basic Industrial Electronics

Adding an impurity such as arsenic or indium causes a semiconductor to take on very different characteristics. This process is called ____.

An SCR looks very similar to a diode except that there is an extra ____.

A diode is a three-terminal device.

An impurity that causes a shortage of electrons is called a(n) ____.

A diode will only conduct current when forward biased.

Conversion of AC input voltage into a DC output voltage is called ____.

A full-wave rectifier has a DC output voltage during one-half of the AC input voltage.

The AC component that causes the pulsating voltage is called the ____.

A ____ changes its internal resistance when its surface is struck by light.

When DC voltages must have little or no ripple, a filter is used to smooth out the pulse.

A diac does not conduct until a threshold ____ is reached.

____ diodes are used to provide voltage regulation.

The bipolar junction transistor (BJT) is a(n) ____ device.

It is not unusual for transistor amplifiers to have a gain of ____.

An N-type material contains free electrons.