A regulated power supply
A computer will not accept a new RAM that has a different voltage than the factory installed RAM cards.
because it reduces the power dissipation
The website Ehow has detailed instructions on how to install a voltage stabilizer. It is installed into an existing circuit to protect a component from receiving more voltage than it can handle.
A voltage regulator that is installed on the back of the alternator
This is a special copper foil wiring system with an adhesive back. It is run before the carpet is installed and is almost completely flat. There are special terminations to transition from foil to regular wiring at each end. Low-voltage versions are available for speakers and low-voltage lighting. There is also a line-voltage version available that is used to provide power to free-standing office cubicles and such.
No. The voltage is different. Even with something like a phone you will need a special plug to use.
High voltage testing is performed to confirm the integrity of a cable's insulation. It is always carried out after a new cable has been installed and terminated, or whenever a new joint is installed.
A coil.
The voltage for a potential relay will depend on the circuit that the relay is installed in. The relay can be made for low voltages (5v) to higher voltages (440.)
Looking for a voltage drop.
Line voltage is understood as the voltage that the device or appliance needs to operate on. It is also referred to as the devices working voltage. Once the proper line voltage or working voltage is applied to the device it may be transformed to different voltages for different internal component circuits.
There is a type of voltmeter which prints out a graph of voltage against time. This can be left installed in a wall outlet for a period of time, such as a week, and it will provide a record of the supply voltage variation over that period.