Voltage Drop
What is the formula for Voltage Drop?
VD=2KID/CM
What article is definitions in?
Article 100
460 V
72 Ohms
I=_______
6.4 Amps
A single pole switch can control a lamp from how many Locations?
1
What stays the same in a Series Circuit?
Current
What is the value for K if the metal used is Aluminum?
K=21.2
What article is Romex? (Type NM )
Article 334
153 V
0.056 Amps
R=________
2732.14 Ohms
The Common on a 3-way switch goes to which two places??
Constant/Feed, Switch Leg or what ever its controlling
Resistance _______ in a Series Circuit.
Adds together
What does CM stand for?
Circular Mils
What Article is EMT?
Article 358
How many volts does it take to produce 500 w of power while pushing 35 A of current?
14.3 Volts
Neutrals go on..
Lamps, Receptacles
What stays the same in a Parallel Circuit?
Voltage
What is the max allowable voltage drop according to the codebook?
3%
EMT is supported at intervals not greater than...
10 feet
What is the resistance of a circuit that has 11kv of electromotive pressure pushing 2kA of current?
5.5 Ohms
A receptacle that is constant on one end and switched on the other is called a..
Half-switched receptacle
To find Resistance in a Parallel Circuit, you need to use the ___________ formula
Reciprocal
What is the Voltage Drop?
2(12.9)(40)(215')/10380
VD=21.4 v
EMT can be made of Copper-Clad metal
T or F
False!
Steel, Aluminum, Stainless steel
You test a circuit and get a reading of 350 mA. The resistance of the circuit board components totals 27 mOhms. In volts, what is the approximate voltage feeding the board?
.00945 Volts
4-way switches are used to..?
Create more locations for switching
What is a circuit called that has both series and parallel in the same circuit?
Combination Circuit