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What is the difference between capacitive reactance and capacitance?
Capacitance is a physical characteristic of a pair of conductors, dependent upon the distance between them, the opposing cross-sectional areas of those conductors, and the nature of the dielectric between them, and is measured in farads.Capacitive reactance is the opposition to the flow of current of a circuit, determined by that circuit's capacitance and the frequency of the a.c. supply applied to that circuit, and is measured in ohms.
Why will the current flow be different in a heated rear screen circuit than a side light circuit?
the heated rear screen circuit has a higher resistance compared to the side light circuit
In order for a circuit to function correctly the electricity must do what?
It must flow through the conductors.
What is a overcurrent device?
a device protecting conductors or other equipment in a circuit from an overload/overcurrent situation
How is the fuse connected in the circuit?
The fuses are held by spring metal clips , the clips are themselves being permanently connected to the circuit conductors.
What are all of the conductors between the service equipment and the final branch circuit?
The conductors between the service equipment and the final branch circuit include service conductors, feeder conductors, and branch circuit conductors. Service conductors connect the utility service to the service equipment. Feeder conductors distribute power from the service equipment to the panelboard or distribution board. Branch circuit conductors then carry power from the panelboard to individual outlets, fixtures, and appliances.
Can there be a potential difference between two conductors that carry like charges of the same magnitude?
Yes, there can be a potential difference between two conductors that carry like charges of the same magnitude. This can occur if the conductors are at different potentials due to external influences or if the conductors are part of a circuit where there is a potential difference applied.
How do you know an electrical circuit has a short in it?
A short circuit is determined by a low resistance between two conductors or between a conductor and the ground. <<>> The circuit's over current protection usually trips resulting in the circuit having no power.
What is a feeder circuit?
Definition from the National Electrical Code Article 100:Feeder. All circuit conductors between the service equipment, the source of a separately derived system, or other power supply and the final branch-circuit overcurrent device.Branch Circuit. The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s).
Is there any short circuit between strands in stranded conductors?
As the strands are in contact with each other, of course there is.
Are the three conductors in a single phase 240v circuit considered to be in parallel?
If the three conductors are in a single cable they physically are positioned parallel in relationship to each other. True parallel conductors are combined to split the current. They have to be of equal length and size so that they split the load current between the two or three or four conductors. Conductors are paralleled so that multiple smaller conductors, which are easier to work with, can carry equally the total load current. To answer the question no, the three conductors in a 120/240 circuit are not considered to be in parallel. All three of these conductors could have a different current being carried by them depending on how the load is distributed.
Can a three phase circuit be installed in the same conduit or in different conduits?
The conductors of any three phase circuit must be run in the same conduit. If the circuit requires a neutral, it must also run with the conductors in the same conduit. (If they were to be run in more than one conduit or raceway, the circuit would not operate properly.)
What is megging a circuit?
"''Megging'' a circuit refers to a process of testing the insulation resistance of the circuit to detect any faults or potential breakdowns. This is commonly done using a megohmmeter, also known as a ''megger,'' to measure the resistance between conductors or between conductors and ground."
What is a loop of electrical conductors called?
A loop of electrical conductors is called a circuit. It provides a path for electric current to flow.
What is the difference between capacitive reactance and capacitance?
Capacitance is a physical characteristic of a pair of conductors, dependent upon the distance between them, the opposing cross-sectional areas of those conductors, and the nature of the dielectric between them, and is measured in farads.Capacitive reactance is the opposition to the flow of current of a circuit, determined by that circuit's capacitance and the frequency of the a.c. supply applied to that circuit, and is measured in ohms.
DoesCode permit connecting receptacles to a 20ampere branch circuit using short lengths of 14AWG conductors as the pigtail between the receptacle terminals and the 12AWG branch-circuit conductors?
No. This practice is a violation of Article 210.19 (A) of the NEC. "Conductors of branch circuits supplying more than one receptacle for cord-and-plug-connected portable loads shall have an ampacity of not less than the rating of the branch circuit."
What is multiwire branch circuit?
A multiwire branch circuit is consist`of two or more ungrouded conductors that has voltage between them and has a grounded conductor that is eoual voltage between each conductor connect to the neutral and it,s ground
