Diagrams
Name 3 pieces of information you can commonly find on a wire list.
Gauge, wire #, from, to, color, termination, length.
Resistance of a wire is a function of what variables?
Cross sectional area, length, and resistivity
How are power and current related?
P=I^2R; P=IV
I want to create a wiring diagram for my house. Is EAGLE an appropriate tool to use? Why or why not?
No, it's meant for creating electronic schematics, not wiring diagrams
What is the critical electrical component in the circuits that logic gates are created from?
Transistor
What direction must power source lines and ground lines point on a schematic?
Power points up, ground points down
A copper wire has a total resistance of 5 ohms. The wire gauge is 14 gauge. What is the length of the wire?
For the circuit on Slide 2, what is the current (in amps) that passes through R3?
3A
What is the general name for the database of components that I can add to EAGLE?
Libraries
Draw symbol and truth table for OR gate
Will result in 1 output for these inputs: 0 1; 1 0; and 1 1. Looks like a fish tail (see Google)
T or F: Pictorial point to point schematics are a good solution when you have lots of wires and a complex layout.
False. It'd be too messy to understand.
A certain wire has a resistance of 2 ohms. The wire gauge is 8 gauge, and the length is 10 meters. What is the resistivity of the material used to make the wire?
1.7 X 10^(-6) Ohm m
Find the equivalent resistance of the resistor network shown on Slide 1.
198.7 Ohm
What is the tool you should use to wire components together in EAGLE?
Nets
What voltage amplifying device is one of the most commonly used electronic devices today?
Operational amplifier
What is the only wiring diagram drawn to exact scale?
Wire/cable harness assembly drawing.
How can I find conductivity if I know the resistivity of a material?
Take the inverse (conductivity=1/resistivity)
A student builds the following circuit shown on Slide 3, where all resistances are equal to r. How does the current through resistor R3 compare from when switch S is open to when the switch is closed?
Current when open is less than current when closed.
What is the context menu in EAGLE and how can I access it?
Shortcut menu that appears when you right click on a symbol
For how many combos of inputs will XNOR gate output result in a 1?
2 (Inputs: 0 0 and 1 1)
What are lacing or cable straps used for?
Hold groups of wires together as a permanent unit.
What is the total power dissipated in watts on a 12# gauge copper wire when running 15 amps, on a total length of 20 meters?
23 W
Find voltage drop over 200 ohm resistor in the circuit shown in Slide 1.
15.3 V
I found two components to add to my schematic that have very similar names. What could some potential differences between the components be?
Footprint; symbol; library that it came from
Find the output, Y, for the given combinations of inputs for logic diagram shown on Slide 4.
0 0 1 1