Materials Science Questions
Explore questions in the Materials Science category that you can ask Spark.E!
A bridge rectifier produces a direct current output for only one-half of the ac sine wave.
____ turn electrical energy into mechanical motion.
Adding impurities to a pure semiconductor is called doping.
The contacts in a normally closed (NC) switch are open when the switch is actuated.
Different pairs of metals are joined in ____ to produce different voltages.
Electrons will only flow through a diode from the ____.
The enclosed contacts of a relay are operated by a(n) ____.
A(n) ____ is an electronic circuit that converts ac to dc.
A silicon-controlled rectifier (SCR) conducts current from anode to cathode
A diac stays in conduction mode as long as the ____ stays above the threshold value.
A semiconductor or solid-state device used to control the flow of current is an ____ device.
In HVACR, many sensors are also ____ because they produce an electrical output signal while monitoring a different input signal.
Semiconductors are substances that can be made to conduct electricity under certain conditions.
Impurities are added to a pure semiconductor to alter its conductivity
Silicon-controlled rectifiers are often used to convert dc voltage to ac voltage in a device called a(n) ____.
The negatively charged side of a diode is called the ____.
As the temperature of a motor increases, the ____ of a PTC thermistor also increases to stop the motor.
A(n) ____ is a solid-state device that allows current to flow in both directions.
The highest density (g/cm ) among dental alloys have:
Which of type of luting cement has the highest tensile strength (MPa)?