Why is grounding necessary in a circuit?

a grounding circuit is a wire that when a wire in your house overloads, the energy goes to the ground, into the wire, and back to it's source. the power plant.

An electric circuit grounding.

In short, it completes the circuit, and facilitates the flow of electricity through the circuit.

It is where a point in a circuit is at zero voltage.

In a completely metallic conduit system it is not necessary to ground each junction box as long as the metallic system has the grounding capacity rating larger than that of the over current device protecting the circuit. The code book states what size conduits are rated at, for grounding amperages.

System grounding is done by connecting a conductor of a circuit to the earth to keep the voltage stabilized. Equipment grounding is when all metal frames of the equipment and conductors are grounded by a permanent connection. This grounding is done in case of an insulation failure.

Grounding or earthing.

It's a term for grounding a hot wire causing a "short".

"Grounding a connector" means you join a connector in a circuit to another point in the circuit that is definitely at ground potential. This is done mainly when testing a circuit, to be sure that a particular point in that circuit really is at ground potential if you are not certain that it is already. Alternatively, you could be doing a test to temporarily ground a connector that is not normally at ground potential, to…

The neutral is THE groundED conductor in a circuit, whereas the earth ground is called the groundING conductor.

The circuits in electronics equipment are very sensitive and can be damaged by static shock. If there is an excess of static shock on your body, touching a circuit could damage it. Grounding yourself removes the static shock from you so that it is safe to touch the circuit.

2008 National Electrical Code - Article 100 Definitions - Grounding Conductor

to ensure grounding safety.

Yes, the grounding of equipment is for safety reasons not operational reasons. By grounding equipment, the conductor, if the equipment develops a short circuit to ground, supplies a low impedance return to the distribution panel where is is sensed by the circuits breaker. Once the breaker senses this short circuit current it will trip the circuit open.

Biasing is necessary in a transistor circuit to keep the transistor working. Without proper biasing, the circuit will fail

The function of a battery in a circuit is to supply the necessary voltage needed to operate the circuit.

It is a safety device. It is not an essential part of the circuit.

A short circuit in whatever system the fuse is for. Something is grounding out.

Grounding in an electrical circuit is an essential safety feature which is compulsory in the electrical regulations.

The groundING conductor is usually the safety ground which serves as an emergency current return path in the event of a circuit fault or overvoltage. Like the groundED conductor, it too is grounded at the service entrance, but is also connected to metal surfaces and parts along the circuit, groundING them. It conducts current only if the current "seeks" to return to the service entrance along a path other than the Neutral (like through your…

Double insulated appliances and lamps do not have a grounding circuit or pin on the plug.

It is a safety measure for devices that have a metal case where a failure in the device could cause the case to be connected to the hot side of the circuit. By grounding the case the breaker will trip instead of you getting a shock.

You don't. What you can use is the resistance scale on a VOM. If the circuit has a reading of zero ohms to ground then it is very likely that the circuit under test has gone to ground. This grounding of the circuit is what caused the short circuit. Find the short circuit before re-fusing or turning the breaker back on.

It is not "necessary" for oscillation to occur in any "arbitrary" circuit. It depends on the design objectives. Please be more specific, and restate the question.

The grounded conductor is usually covered in white or light gray insulation. The grounded conductor is connected to the grounding conductor at one and only one point, usually near the transformer or in the circuit breaker panel.