Part 1 Flashcards
What is voltage and what is it measured by?
Voltage is the potential for a charge to move and is measured in volts
What is current and what is it measured in?
Current is the amount of charge flow and is measured in amps
What is resistance and what is it measured in?
Resistance is a wire’s opposition to flow measured in Ohms
Draw an example of voltage and current and describe
Voltage causes current which flows throught he bulb causing it to glow.
A ____ voltage will cause more current making it _____
Higher and brighter
Explain how voltage is like water and a hose
Voltage is like water pressure from a faucet to a hose. Current is the amount of water actually flowing through the hose. Reistance is like a thin hose that more strongly resists the flow than a wide hose.
Current flows from a ____ voltage point to a _____voltage point on a wire, which is called ____
higher, lower, ground
Write Ohm’s law
V=IR
v-voltage
I-current
R-resistance
What is a switch?
A switch is an electronic device that acts like a wire between 2 terminals if the switch is configured to on.
What is an electronically controlled switch?
It is a switch that has another input terminal whose voltage can turn the switch on. The terminal that controls an electronically controlled switch is known as the control input.
What is a transistor?
It is a small switch with no mechanical parts
What are the two types of CMO transistors?
nMOS which conducts when its control input is 1 and pMOS which conducts when its control input is 0
What is a circuit?
It is a path through which current can flow
A high voltage line is labeled ___
A low voltage line is labeled ___
high - 1
low - 0
What is a digital circuit?
It is a circuit that has voltages that are treated as high or low and is typically built as a connection of switches. Input is generated into its inverse for output.
What is an analog system?
It is a system that has voltages that are treated as infinite values, and treats its voltage as continuous and generates output with amplified voltage.
The number in base 10 is called a ___ number
decimal
Give an example of base ten with 452?
4·10^2 + 5·10^1 + 2·10^0
A number in the base two is called a _____
binary number
Count in binary
000
001
010
011
100
101
How do you convert binary to decimal?
the spots are as follows - 8 4 2 1
0011 -> 2+1=3
Convert decimal to binary
spots are as follows - 8 4 2 1
5 - 4+1 so 0101
What are the three common logic functions?
And, or and not
What is a logic gate?
A logic gate is a transistor circuit that implements a logic function.
