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shalikadm
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I have seen that in some circuits there's grounding...I know that earthing is for keep a part of a circuit in a zero potential...Don't know why it's done...Here's some circuit's..Tell me why it's been earthed..
shalikadm said:The first diagram shows a circuit that is used to measure current across the diode against voltage and to draw V-I characteristic diagram for a diode..when the current flows to the left direction the diode is forward biased and when the current flows to right direction the it's reverse biased...But I wonder what the reason is for grounding between the two batteries having opposite terminals connected...explain this for me..
Drakkith said:There may not be any reason other than that was simply how the diagram was designed. If these are practice circuits then they don't need to be real items.
shalikadm said:So can we use that circuit to draw the V-I graph without that grounding between the the two cells ?
The purpose of grounding a circuit is to provide a safe path for electrical current to flow in case of a fault or surge. It also helps to protect equipment and prevent electrocution.
Grounding a circuit involves connecting the circuit to the earth or a conductive material, such as a metal rod, which serves as a reference point for electrical potential. This allows any excess electrical current to flow into the ground instead of damaging equipment or causing harm to humans.
If a circuit is not grounded, any excess electrical current will have nowhere to go and can cause damage to equipment or lead to electric shock. This can also result in power surges and other electrical disturbances.
In most cases, yes. Building codes typically require that all circuits be grounded to ensure safety and protect against electrical hazards. However, there may be some exceptions, such as in older buildings where grounding was not a standard practice.
Grounding a circuit can help prevent electrocution by providing a safe path for electrical current to flow. However, it is not a foolproof method and other safety precautions should also be taken, such as using GFCI outlets and avoiding contact with live wires.