For more details in the reactive case, see AC power.
Don't feel like rewiring the AC power to your home or office to do it?
If the battery can no longer hold a charge, then the computer cannot run on AC power and hence it will not boot.
AC power is cheaper and easier to make electronic devices.
The power switches for AC power are also less expensive to make.
If connected to a source of power it can also provide active AC power.
These are particularly interesting to the building/construction contractor market, since they often require AC power when on the job.
Its intended use was in applications where AC power is supplied to the field nodes.
Most systems have a characteristic voltage and, in the case of AC power, a system frequency.
And he was suddenly hit by 220 volts of AC power.