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Practically we take ground at some point or other in a circuit this is done because:-
any voltage measuring device gives you only the potential difference so if we desire to measure the voltage at a particular point A in the circuit (say using a multimeter) we are bound to take another point in a circuit B of known potential.
ex. if we know that the potential of point B is 4 V
and with the help of voltage measuring device we put one of the leads at A and another lead at B and measure the potential difference between them , let theis value be V volts.
VAB=V
VA-VB=V
VA=V+VB
VA=4+V
so, to avoid these confusions we take the point B as ground and arbitrarily chose its potential to be 0 , so that the measures potential difference would actually represent the voltage of the given point A
What else can I help you with?
Does a GFCI need a ground connection to function properly?
No, a GFCI does not need a ground connection to function properly.
Why you need ground in electronics circuits?
I dont know but it is to get a circuit common and to give a negative input to the circuit
What precautions do you need to take to prevent electrostatic discharge damage to circuits and sensitive components?
Ground yourself before touching anything in the computer
How do double throw double pole switches function in electrical circuits?
Double throw double pole switches have two separate circuits that can be controlled by a single switch. This allows for more flexibility in how the circuits are connected or disconnected. When the switch is flipped, it can change the connection of both circuits simultaneously, making it useful for applications where multiple connections need to be switched at the same time.
How do circuits work?
Circuits need 3 things to work. They need a load, (what the power goes on) power source, (the battery) and connectors (the wire inbetween). Circuits use electrons to flow from the negative side of the battery and around the circuit back to the battery. This repeats until the circuit breaks.
How do you repair a bad ground connection on your car?
You need to clean the connection where the ground is faulty. Start at the battery. Take off the cable wire brush the battery and cable then spray with some white lithium grease to prevent futher problems.
How do you ground a computer?
Grounding an electrical or electronics device commonly refers connecting it's power inlet ground pin to the ground connection of the power outlet. The power outlet ground connects to the ground connection provided by the electricity utility company or the building's common ground connection. The grounding essentially provides a zero volt reference. Many systems which have a metal chassis provide specific grounding points with screws/nuts to connect grounding wire. To ground chassis of a computer one need to connect ground wire to the metal case.
Why do you need circuits?
i dont know why is it
What do you do with the ground wire when installing a new thermostat that doesn't have a connection for the ground wire It's a 4 wire Honeywell thermostat Is it ok to not connect the ground wire?
That Thermostat is LOW voltage. IT does not have a ground wire. There is no need for a ground. it only opperates on 24 volts. there may be a green wire but it does not mean it is a ground
Your stereo is on without a ground what is wrong?
The radio is grounding through the antenna connection. Unplug the antenna and see that it will stop. However you still need to hook up the ground 1st and the antenna last.
Do radios have to have an earth connection?
When a radio receives a signal, that is not the same as the creation of an electric circuit, and no electricity needs to be returned by way of the ground, as in most forms of wiring. If you were floating in the air, suspended by a hot air balloon, you could still receive radio signals. An earth wire enhances the signal strength. Large broadcast transmitters still use an earth for efficiency. Modern, portable radios, have much improved tuning and detection circuits and so do not need an earth to work. Early radios and crystal sets, need an earth because of the inefficiency of the tuning circuits.
How does the feed through panel function in the electrical system?
The feed through panel in an electrical system allows for the connection of multiple circuits by passing power through the panel without the need for individual connections.
