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## What are supply voltages?

[sə′plī ‚vōl·tij] (electricity) The voltage obtained from a power source for operation of a circuit or device.

## What are voltage specifications on the power supply?

Voltage and current specifications The primary power supply specifications are the voltage and current output parameters. In terms of the voltage, the power supply may be fixed or it may have a variable output. It is necessary to check whether the power supply has a fixed or variable output.

## What are the normal specifications of power supply?

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Item Specification
Normal-Capacity Power Supplies
Maximum output power 2800 W
DC input current rating 58 A @ –48 V nominal operating voltage
Maximum input current 70 A

## What is the main power source?

According to the U.S. Energy Information Administration, most of the nation’s electricity was generated by natural gas, coal, and nuclear energy in 2019. Electricity is also produced from renewable sources such as hydropower, biomass, wind, geothermal, and solar power.

## What are the two types of power sources?

Introduction to Major Energy Sources Energy sources can be classified into two types: nonrenewable and renewable. Nonrenewable resources, such as fossil fuels and nuclear material, are removed from the earth and can be depleted. These resources have been the most used type of energy in the modern era.

## What are three voltages provided by power supply to the computer?

24 volts 48 volts Explanation: Computer power supplies typically deliver three voltages to various components inside the computer. These are 3.3 volts for CPUs, 5 volts for motherboard components, and 12 volts for disk drive motors.

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## How many volts are in a switching power supply?

Power supplies, often referred to as “switching power supplies”, use switcher technology to convert the AC input to lower DC voltages. The typical voltages supplied are: 3.3 volts 5 volts

## How does a power supply unit work on a computer?

The power supply unit consists of some regular electric components like a transformer to increase or reduce voltage level, a rectifier that converts AC into DC voltage, voltage regulators to control the output voltage as needed.

## How are voltages and current related in a DC system?

Again in DC system, there is no phase difference between voltage and current, i.e. cosƟ = 1, and only two conductors (positive and negative) are used. So, in DC system transmitted power P = VI, and power loss From equation (2) and (3), it is clear that power loss in transmission line is inversely proportional to the square of line voltage.