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ELECTRICAL AND COMPUTER ENGINEERING QUESTIONS AND VERIFIED ANSWERS|100% CORRECT|GRADE A+
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ELECTRICAL AND COMPUTER ENGINEERING QUESTIONS AND VERIFIED ANSWERS|100% CORRECT|GRADE A+
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ELECTRICAL AND COMPUTERENGINEERING QUESTIONS AND
VERIFIED ANSWERS|100%
CORRECT|GRADE A+
Electrical Engineering - ANSWER The design and construction of electrical and electronic components
and devices.
Electric - ANSWER Take electric current and covert it to energy in simple ways, such as light, heat, or
motion. Generally refers to high power devices (Ex: generators, motors, lamps, power stations, and
house wiring.)
Electronic - ANSWER Designed to manipulate the electrical current itself to coax it into doing interesting
and useful things. (Ex: computers, remotes, and cell phones.)
Communication Systems - ANSWER Radio frequency, telecommunications, networking, and fiber optics.
Power Systems - ANSWER Energy conversion and distribution and alternate power sources.
Control Systems - ANSWER Microprocessor design, circuit design, and robotics.
Magnetism - ANSWER Generators produce electricity by changing mechanical energy to electrical
energy.
Induction - ANSWER Voltage induced in wire when magnet passes it.
Chemical Action - ANSWER Cells use _______ _______ to create electricity.
Battery - ANSWER Multiple connected cells.
Electrode - ANSWER A solid conductor through which electricity enters or leaves.
, Static Electricity - ANSWER Excess charge on an objects surface.
Conductor - ANSWER Anything that allows current to flow, such as copper wire.
Voltage - ANSWER - Electrical force that causes electrons to move.
- Energy per unit charge.
- Measured in volts.
Current - ANSWER - Rate of flow of electrons.
- Measured in Amperes or Amps (A).
1 Ampere = 1 unit of charge passing a point in 1 second.
Conventional Current Flow - ANSWER Current flows from negative to positive.
Electron Flow Theory - ANSWER Electrons move from positive to negative.
Polarity - ANSWER Positive or negative condition at power supply.
Alternating Current (AC) - ANSWER - Polarity changes back and forth. When the voltage reverses, so does
the direction of the current flow.
- _______ _______ is used in nearly all the world's power distribution systems for the simple reason that
AC current is much more efficient when it's transmitted through wires over long distances.
- In the US, the current/voltage reverses itself once every 60 seconds: 60Hz.
Direct Current (DC) - ANSWER - Current that flows continuously in a single direction and supplies
constant voltage.
- Polarity is constant.
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