because it reduces the power dissipation
You can not. Speakers do not supply a voltage they need a voltage to operate correctly.
You need to convert the voltage if your appliance requires less voltage than you power supply. example: appliances is 110V and power supply is 220V.
Intravenous feeding can supply some or all of the nutrients these patients need.
Obtain a power supply that has the correct output voltage that you need.
Look at the microphone datas, they will tell you, what external voltage you need. Only dynamic microphones like the Shure SM57 need no extra voltage.
By using a voltage divider, that is two resistors of the same value in series across the DC supply. Half of the supply voltage will be at the point where the two resistors is connected. But how much wattage of those resistors is also an issue.
The question can't be answered without knowing what the voltage is. That is because the allowed voltage drop is 5% of the supply voltage, so you need to know the supply voltage. Then the wire calculation aims to find out what the minimum size of wire is that produces that voltage drop or less.
No. You need a 3-phase supply that matches the voltage and current rating of your appliance.
High voltage power supplies have many uses. It is most commonly used to supply power from a device to the circuit. These are great for people who need to supply their house with power.
Yes it also supply power for plug.
Contact Marlin directly, they should be able to supply one for you.
The circuit by itself doesn't determine the voltage of the power supply. If there's some additional requirement that goes along with the circuit, such as "The current through the circuit must be XYZ amperes.", or "The voltage across the third component from the north end of the circuit shall be ABC volts,", then that requirement would dictate the power supply voltage. But in order to calculate it, you'd need the knowledge of every component in the series circuit.