What is the load in a DC circuit?

A simple DC circuit consists of a current source (e.g. battery) and one or more “loads” (circuit elements). Each “load” absorbs electrical energy, converting it to some other form of energy, e.g. a light bulb emits heat and light energy, an electric motor performs mechanical work and emits heat.

How do you calculate DC load voltage?

Through Ohm’s law, you can calculate the voltage (V), current (I) and resistance (R) of a DC circuit. From that you can also calculate the power at any point in the circuit. Follow Ohm’s law: Voltage (V) = Current (I) times Resistance (R).

What are DC power supply components?

From the block diagram, the basic power supply is constituted by four elements viz a transformer, a rectifier, a filter, and a regulator put together. The output of the dc power supply is used to provide a constant dc voltage across the load.

Why is DC not transmitted?

Why DC is not used for transmission When the voltage is stepped up the current will be reduced so the conductor size can be reduced and the cost is reduced. The voltage drop is reduced so long-distance transmission is possible.

Which current flows only in one direction?

For this example, we will use the common sine wave. There are three parts to a sine wave: amplitude, frequency, and phase. V(t) is our voltage as a function of time, which means that our voltage changes as time changes. The equation to the right of the equals sign describes how the voltage changes over time.

What is the use of a a DC power supply?

A DC power supply is used in most of the appliances where a constant voltage is required e.g a regulated power supply based on the LM7805 voltage regulator. DC stands for Direct Current, in which the current flow is unidirectional. The process of DC conversion can be done by DC Converters.

What is DC electricity and how does it work?

DC electricity is the continuous movement of electrons through a conducting material such as a metal wire. The electrons move toward a positive (+) potential in the wire. DC movement of electrons in wire. In reality, there are millions of electrons weaving their way among the atoms in the wire. This is just an illustration of the movement.

How does a linear AC/DC power supply work?

A linear AC/DC power supply has a simple design. By using a transformer, the alternating current (AC) input voltage is reduced to a value more suitable for the intended application. Then, the reduced AC voltage is rectified and turned into a direct current (DC) voltage, which is filtered in order to further improve the waveform quality (Figure 2).

What is the difference between AC power and DC power?

The power of direct current (DC) DC power is beginning to evolve towards replacing AC as a worldwide standard for electricity delivery infrastructure, in many applications, based on the nine reasons listed below: 1. DC power is significantly more energy efficient than AC power.