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For various reason some charges may accumulated on an electric equipment. If any personal touch it he/she may get shock. That is why an extra path is provided as ground connection to remove these charges from electric body to the Earth.
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I was answering contemporaneously, the above answer is correct :-)
If two points are charged and they are connected by a perfect conductor, the current flowing between the two points depends on the potential due to the charge difference. The current flows moving electrons from the negative to the positive element up to the moment in which the charge difference is nullified and no current flows due to the presence of no potential difference.
If I connect a charged element to a very large, uncharged body, almost all the charge of the charged element is discharged towards the large body, creating a current burst. This happens when I touch with my body a charged element in a circuit: my body is big and neutral and it works as a sort of zero potential element, so that all the charges are discharged towards my body in a current burst that can be quite dangerous.
Earth is much bigger with respect to my body, if I create a connection between the circuit and the earth that acts as a potential reference, if I touch the circuit I am at the same potential of earth, at zero potential, but no discharge happens since all possible charges have been already discharged towards Earth.
What else can I help you with?
What is the process of connecting an object to Earth with a conductor called?
The process of connecting an object to Earth with a conductor is called grounding. Grounding helps to safely discharge excessive electrical charges and prevent the buildup of static electricity. It is essential for electrical safety and can protect against electric shocks or damages caused by lightning strikes.
What season has the earth's axis form a 90 degree angle with the line connecting the earth and sun?
The season in which the Earth's axis forms a 90 degree angle with the line connecting the Earth and the Sun is the spring or fall equinox. During this time, the day and night are approximately equal in length across the globe.
What is one of the three straits on earth?
One of the three straits on Earth is the Strait of Gibraltar, located between Spain and Morocco, connecting the Atlantic Ocean to the Mediterranean Sea.
What is different netural and ground or earth?
The neutral wire carries current back to the source in a circuit, while the ground or earth wire is used as a safety measure to protect against electric shock. The neutral wire is a current-carrying conductor under normal operation, whereas the ground wire carries no current except during fault conditions.
Imaginary lines connecting places of the same latitude are known as?
Imaginary lines connecting places of the same latitude are known as parallels. These lines run parallel to the Equator and help in measuring distances on the Earth's surface horizontally.
Can electric circuit b completed without earth?
Yes, an electric circuit can be completed without connecting it to earth. The circuit needs a complete path for the current to flow back to the source, so as long as the circuit is properly connected and the electrons can flow through the components, it will work without needing an earth connection.
When charge are able to flow directly from the circuit into Earth a ciruit electrically?
That is what the Earth wire does. Normally it does not carry current but it has this important safety function.
What does it mean RCD?
Residual Current Device. Also known as an Earth Leakage Circuit Breaker or a Safety Switch
Can earth wire be used as a neutral wire?
No, an earth wire has a specific safety role in an electrical circuit that does not allow it to be used as one of the two current-carrying wires.
What does Purging a metal container used to hold liquid is a safety precaution eliminate from the container?
the potential difference between an object and the earth can be minimized by
What does grounding mean in science?
Same as earthing. Connecting an electric circuit to the ground allows electrons to flow down to earth, and spread out. It therefore acts like an absolute 0V level in the circuit. There are various reasons why one might want to do this.
How can you earthed a 3 phase electric circuit?
To earth a 3-phase electric circuit, connect the earth wire from each phase to a common earth point, usually a grounding rod or plate buried in the ground. This helps to protect against electrical faults and ensures the safety of the circuit by providing a path for excess current to flow safely into the ground. It is important to follow local electrical codes and regulations when earthing a 3-phase circuit.
Why the most earth leakage circuit breakers trip on off condition?
Earth leakage circuit breakers can trip in the off position if there is a fault in the wiring or if the breaker itself is faulty. It could be due to high levels of leakage current or a short circuit. It is a safety feature to prevent electrical hazards and should be investigated by a qualified electrician.
What is the process of connecting an object to Earth with a conductor called?
The process of connecting an object to Earth with a conductor is called grounding. Grounding helps to safely discharge excessive electrical charges and prevent the buildup of static electricity. It is essential for electrical safety and can protect against electric shocks or damages caused by lightning strikes.
Why do outlets have 3 holes?
Live, neutral and earth. The supply is carried on the live and neutral, and the earth normally carries no current, but if there is a fault the earth is there as a safety factor and in some conditions it carries enough current to blow the fuse and make the circuit safe.
Why earthing is required in star connection?
It is essentially a safety feature. The "neutral point" of the star (or Y) configuration in three-phase circuits would normally be at an electrical potential of 0 (zero) volts, but if the circuit is unbalanced the voltage at this point could rise considerably. If this point is earthed and any voltage appears at this point due to a circuit imbalance, an "earth leakage current" will begin to flow. This earth leakage current can be detected and used to trip a circuit-breaker to cut off the electrical supply for safety. Earth Leakage Circuit Breakers (ELCB) are commonly used in industry and around the home for reasons of safety.
An isogonic line on the earth's surface is a line connecting all points at which?
line connecting magnetic north
