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7

How can I make sure my audio ground is totally protected against this scenario? The short answer is "with difficulty". For instance, a static discharge (ESD) onto the enclosure will create a current pulse through to ground but your chassis is connected to real ground via an earth wire that has inductance. Inductance can be generally approximated as 1 uH/...


0

Is there a standard? Not a universal one writing... but by popularity positive grounds and coaxial center negative have faded fast in the last 2 decades, due to user error. Since ground only means a 0V reference, it does not matter locally, only when interacing. Zero Volts, 0V is always floating , unless connected to anything that is connected grid ...


1

"Ground" in most circuits is just the point we want to call "Zero Volts" and use as a reference when measuring voltages elsewhere in the circuit. In most circuits these days, "Ground/Reference" is the negative terminal of the power supply, but in some cases it might be the positive terminal. (Old 6 Volt cars were often "positive Ground", but negative ...


1

You can put ground wherever you want; the grounded points in your circuit will then all be at 0V (by definition/convention), and, theoretically, they will all look as the same node (ie, no impedance whatsoever between them). Look at it this way: Batteries, and other voltage sources, only set a voltage difference between their terminals, which means that ...


0

No, you cannot. you should start with a grounded work surface and attach yourself to that. you can ground yourself to a power outlet. but that doesn't protect your laptop unless it is also grounded, and any parts being removed or added should als be grounded at the same time. if you want to connect to mains ground connect to a grounded appliance, (eg, a ...


1

Typically, the path between an anti-static bracelet and the earth ground of an outlet has a resistance on the order of a megaohm by my measurement recollection. It's meant to bleed off static electricity "slowly, " not to short your body to earth ground.


3

Put the clip to your laptop. It does not help if you ground yourself and the laptop is ungrounded so there can be potential difference between you and laptop.


1

I would not do that. My experience with UK plugs is that you can easily remove the two power prongs. That would give you a much safer access to the ground pin.


5

Bad idea. The pin may not be making contact internally in the socket. You also risk contacting the live pin on an older plug. Figure 1. The earth pin of a UK 13A plugtop. Instead, get a length of insulated wire, strip off about 6 mm and terminate it in the earth pin and run it through the cable clamp - maybe looping around it so that it grips the single ...


0

Given the current thru each divider is 2.5/200 = 12.5 milliamps, if the Ground wire on the connector is 10 milliOhms resistance, the error change for each added RTD will be 0.01 ohms * 0.0125 amps = 125 microVolts ---- per added divider. Examine your error budget and decide what is permitted.


-1

In electronics circuit there are no physical ground. These ground are used to show zero voltage. In real physical circuit don't use ground. It is replaced here by negative. In electrical wiring ground is used and it is not same as neutral. In software like Proteus there is need to put ground terminal cause there we use power and ground septate and in ...


0

Grounding or earthing, I consider are same. Grounding means two dramatically different things, depending. Safety Ground What I call Equipment Safety Ground (and NEC calls Equipment Grounding Conductor) is the third pin on your AC plug. It is (supposed to be) connected to actual earth. It's meant to be a safety shield only, and current must never flow ...


2

In most electronics, the Ground symbol simply marks the point in the circuit that we consider "Zero Volts" - the reference point for voltage measurements elsewhere in the circuit. It is the point in the circuit where we connect our meter's black lead, or oscilliscope ground clip. Circuit simulators require a Ground symbol somewhere on the circuit so they ...


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