# ECE 201 Exam 1

version from 2015-10-07 19:24

## Section

Circuitinterconnections of electrical devices
Signalelectrical current or voltage that carries information or energy
interfaceis a pair of accessible terminals
Circuit analysisfinding the output signals of a given circuit with known inputs
Circuit Designdevising one or more circuits that produce the right output
3 Ways if Evaluating a Circuit 1. Number of Devices 2. Cost 3. Power consumption
Tera (T)10^12
Giga (G)10^9
Mega (M)10^6
nano10^(-9)
femto (f)10^(-15)
atto (a)10^(-18)
Voltage - Energy - Charge RelationshipV = W/Q
Delta to Y transformation(Product of the adjacent delta resistances)/(Sum of the delta resistances)
Y to Delta transformation(sum of the products of the Y resistors in pairs)/(the opposite Y resistor)
Faraday's constant 9.648 70 x 10^4 electrons per coloumb
Black0
Brown1
Red2
Orange3
Yellow4
Green5
Blue6
Violet7
Gray8
White9
Gold5% tolerance
Silver10% tolerance
Nothing20% tolerance
Voltage divisonVk = (Rk)/(Req)Vtotal
Current DivisionIk = (Gk)/(Geq)Itotal