35 Electrical Systems Bingo Device has an iron core that is pushed out by an electromagnet Solenoid This type of DIP provides a pulse of timed duration. 555 IC Counting circuits sometimes output to this type of display Seven Segment An LDR is a ____ dependent resistor. Light A circuit that requires all inputs to be high to get an output: AND Gate This part of an LED must be attached toward ground. Cathode This device has a piece of carbon with a wiper to vary the flow. Potentiometer This unit is 1/1000th of the standard measurement for current. Milliampere The two main types of output devices are transducers and ____. Actuators This represents the amount of pressure that drives electrons Voltage The direction of the flow of electrons is often called : Polarity The speed at which pulses occur is called _______. Frequency This type of chip has two transistors built into it. Darlington Pair When you see Vcc on an IC, the cc stands for ________ collector. Common This type of device keeps current from flowing backwards. Diode The part of the motor that pivots and has coil wrapped around it. Rotor This is a switch that uses an electromagnet as the actuator. Relay A relay can control or be controlled by both Direct & ___ current Alternating Two main types of integrated circuits are TTL and _______. CMOS CMOS stands for ____ metal oxide semiconductor. Complementary DIP stands for _______ in-line pin. Dual On a seven segment display, D.P. means _____ point. Decimal On a resistor, the gold or silver band at the end indicates: Tolerance The part of a microphone that vibrates is called the _____. Diaphragm One would use this type of switch to change polarity. DPDT Voltage = Amperage x Resistance Ohm's Law This type of device can measure temperature over 500ยบ F. Thermocouple This is the standard measurement for Resistance: Ohms This part of the motor is a permanent magnet that doesn't move. Stator These are the contacts that keep electrical connection in a motor Brushes John Bardeen, Walter Brattain, and William Shockly invented : Transistor A one shot circuit is sometimes referred to as : Monostable When the frequency equals one pusle per second, it is a(n): Hertz This component holds a charge of electricity & discharge quickly Capacitor Capacitance is measured in : Farads