If a circuit is grounded through a capacitor it is referred to as AC ground because ac signal can pass through the capacitor DC level is blocked
An AC outlet
green is ground regardless of ac or dc
Most likely your "purple" was once black, and is the negative; to verify, trace "purple" to ground, or touch the leads of an ohmmeter to purple and ground. You should get "0" ohms at the correct wire. This assumes a negative ground.
In the US, the common usage of these colors is: BLACK: Hot - connected to one phase of the service AC. WHITE: Connected to the Neutral of the service AC. GREEN: Connected to the GROUND bus at the service entrance. At the service entrance, the GROUND and the NEUTRAL bus are connected together.
The capacitor helps to keep the quiesent point fixed. During its operation it bypasses the ac component. If the ac also flows through this emitter link then as we know by parameter equations emitter current and ce voltage changes hence varying q point.
Hi, It's generally required at all times, but there is a problem though with most o'scopes, and that is that the o'scope's ground connection is also connected to AC ground through the AC power plug. The best way to circumvent the possible shorting of the circuit you're testing, you should use an AC isolation transformer on the o'scope. This removes the AC ground from the scope but allows you to retain the signal and AC ground on the device being tested. Hope this helps, Cubby
San Siro
An AC outlet
The purpose of the AC ground wire in electrical circuits is to provide a safe path for excess electrical current to flow to the ground, preventing electric shock and protecting against electrical fires.
The team that has its home ground named San Siro is Ac Milan.
In principle you can use a common wire for ac and dc in a low voltage low power circuit, for example 12 volts at up to about 20 watts. If the ac is at a power-supply voltage it must use separate wiring to comply with safety standards. In low-power dc equipment like radios it is normal to use a step-down transformer with the ac live and neutral connected to the primary, and the earth connected to the transformer case, the chassis and one side or other of the dc supply taken from the secondary via a rectifier and smoother.
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Most pool lights are 12v ac and run off a transformer so no need to ground
Installing a ground AC unit in a residential property can provide benefits such as efficient cooling, lower energy costs, quieter operation, and improved indoor air quality.
from ground
to avoid radio signal interference.
green is ground regardless of ac or dc