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All Topics  >  Engineering  >  Electrical Engineering - Direct Current

 

Electrical Engineering Technology

Earn your ASSOCIATE DEGREE through Penn Foster College

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POWER

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Published since 1882 and read by managers and engineers, POWER is the oldest and most trusted source of information in the energy industry. Coverage includes boilers and combustion systems, environmental management; instrumentation, controls, computers, and software; information technologies; natural gas, oil, coal, and renewable fuels; nuclear power; pumps, compressors, valves, and piping; turbines, engines, and generators; water treatment.

 

Circuit Analysis Techniques

Ohm's Law states the voltage across a resistor, R (or impedance, Z) is directly proportional to the current passing through it (the resistance/impedance is the proportionality constant).

 

Affordable Online Courses

Electrical Engineering Awareness and Terminology Certification - $9.99 The Electrical Engineering Awareness and Terminology Certification has been developed to assess important concepts, skills and terminology related to Electrical Engineering.

DC Power Supplies:  Fundamental Concepts
This course introduces the student to the purpose, function, and elements of the ubiquitous DC (direct current) power supply. Modern electronic devices generally require low-voltage DC sources to power their circuits. Some devices use battery or even solar power, but all others need a DC power supply, typically connected to a house or office AC (alternating current) wall outlet. These include radios, stereo systems, TV, computers, and other devices which we use daily. - 2 PDH

 

Direct current

Direct current (DC or "continuous current") is the continuous flow of electric charge through a conductor such as a wire from high to low potential. In direct current, the electric charges flow always in the same direction, which distinguishes it from alternating current (AC).

 

 

Building a DC Power Supply

This device is commonly used for doing electrophoresis. Commercially available units that provide the necessary 120VDC usually cost $1,200 or more. The following one costs less than $20.

 

Direct Current (DC) Electricity

Direct current or DC electricity is the continuous movement of electrons from an area of negative (-) charges to an area of positive (+) charges through a conducting material such as a metal wire. Whereas static electricity sparks consist of the sudden movement of electrons from a negative to positive surface, DC electricity is the continuous movement of the electrons through a wire.

 

Earn your PDH online in the convenience of your own home or office using PDHengineer.com

 

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