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for safety purposes the safety ground
in normal operation, both the hot and neutral alternately
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What wire carries the electrical current to the appliance?
The black wire is the hot wire through which the electrical current flows to the appliance. The left over voltage which is usually zero flows back to the main circuit panel through the white neutral wire where it flows to ground.
Is a ground wire necessary for a complete circuit?
No, the ground wire is there for safety reasons and only carries current in fault conditions.
If a long straight wire is aligned northsouth and carries current in the northerly direction What is the direction of the magnetic field created directly above the wire?
east
What is the difference in the direction of the magnetic field produced around conductor by dc flow and ac flow?
The direction and amplitude of the magnetic field around a wire depend on the direction and amplitude of the current through the wire. When the wire carries DC, the direction and amplitude of the current in the wire are constant, so the direction and amplitude of the magnetic field around the wire are constant. When the wire carries AC, the direction of the current in the wire is periodically reversing and its amplitude typically changes, so the direction of the magnetic field around the wire is periodically reversing and its amplitude is typically changing.
Is the neutral wire energized when the appliance is off?
No current flows in the circuit when the circuit is open, as in when the appliance is switched off. The voltage is on the "hot" side of the switch when it is in the open position but the neutral is not energized until the switch is closed.
What wire carries the electrical current to the appliance?
The black wire is the hot wire through which the electrical current flows to the appliance. The left over voltage which is usually zero flows back to the main circuit panel through the white neutral wire where it flows to ground.
How does a fuse wire save an appliance from high electric current?
A fuse link will melt and interrupt the flow of current to the appliance before it can get high enough to damage the appliance or wiring.
What is a current-carrying wire?
A wire with some resistance and a voltage applied to it The amount of current I passing this wire is V/R
What is black wire use for?
In household wiring it is the "hot" wire that carries current to the load.
What happens to copper wire because of the moving magnet?
The copper wire carries an electric current.
Do wires electromagnetic?
Any wire that carries a current will have a magnetic field.
Why the current coil of wattmeter has more thikness wire than pressure coil?
Current coil carries the current.
Why the slight current is seen in the earthing pipe?
A slight continuous current in the earth wire or pipe indicates that there is a fault that needs investigating. Normally an appliance should be insulated from the earth wire so no current flows.
What carries messages by wire?
A machine for preserving food cold and fresh
A wire carries a current of 6.0 amperes How much charge passes a point in the wire in 120 seconds?
720 C
Is a ground wire necessary for a complete circuit?
No, the ground wire is there for safety reasons and only carries current in fault conditions.
Why you use fuse in circuits?
A fuse is a piece of thin wire in a small fireproof container, and current flows through it on the way to the appliance. If there is a fault in the appliance and too much current starts to flow, the fuse-wire melts and stops the current, and it stops any possible fire that the excess current could cause. So a fuse is an important safety device.
