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Materials Science
Explore questions in the Materials Science category that you can ask Spark.E!
- An electrical switch that operates under the control of an outside electrical signal.
- A device that produces electrical energy when it absorbs light.
- A half-wave rectifier produces a direct current output with no gaps between the waves.
- Current will flow through a diode when the positive terminal of a battery is connected to the cathode and the negative terminal is connected to the anode.
- A ____ installed in a gas furnace stops producing a voltage when the pilot light flame goes out.
- A solid-state device that allows current to flow in both directions.
- A microprocessor functions as the control center of a system and can accept information, store it, and react in some preset way.
- An electromagnetic device that is often used in HVACR systems to control refrigerant or water flow.
- A ____ is a layered, three-terminal semiconductor device that is used to either switch or amplify an electrical signal.
- Functions as the control center of an entire system and can accept information, store it, and react in some preset way.
- In order for current to flow through a diac, the applied voltage must reach or exceed the diac's breakover voltage.
- The negatively charged side of a diode is called the anode.
- In HVACR, thermistors may be used to stop electrical power from going to an overheating motor.
- P-type material has positively charged spaces called ____.
- A diode is a solid-state device composed of only P-type material.
- Positive temperature coefficient (PTC) thermistors increase their resistance as their temperature ____.
- A diode setup is ____ biased if the positive terminal of a battery is connected to the anode and the negative terminal is connected to the cathode.
- Sensors are devices that detect and respond to some kind of stimulus.
- A ____ is a device that converts an input signal from one form of energy to an output signal of another form of energy.
- Applied voltage below the breakover voltage will not be able to force current through a diac.