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DelMars Electricity Unit 2 Electrical Quantities and Ohm questions and answers verified 2024
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DelMars Electricity Unit 2 Electrical Quantities and Ohm questions and answers verified 2024
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DelMars Electricity Unit 2 ElectricalQuantities and Ohm's Law
Voltage - correct answer ✔The potential difference measured in volts. The
amount of work to be done to move a charge from one point to another along
an electric circuit.
Potential Difference - correct answer ✔The difference between the positive
and negative charges developed by a power source.
Neutral Conductor - correct answer ✔The grounded conductor of a power
system. It is connected to ground potential and is considered a current
carrying conductor the neutral is generally white or gray.
Joule - correct answer ✔(J) A basic unit of electric energy. A Joule is the
amount of work done when 1 Amp flows through 1 ohm for 1 second. A joule
is equal to 1 Watt.
Impedance - correct answer ✔The total opposition to current flow in an
electric circuit.
Horsepower - correct answer ✔A measure of power for electrical and
mechanical devices.
Grounding Conductor - correct answer ✔The conductor that is used to force
a piece of equipment to exist at ground potential. I is generally green in color
or bare.
Electron Flow Theory - correct answer ✔Electricity flows from negative to
positive terminals.
, Electromotive Force (EMF) - correct answer ✔Electrical Pressure, the force
that pushes electrons through a wire; the force that causes electrons to flow
through a circuit.
Coulomb - correct answer ✔A quantity of electrons equal to 6.25x10^18
Conventional Current Flow Theory - correct answer ✔A theory that considers
current to flow from the most positive source to the most negative source.
Complete Path - correct answer ✔The path that exists in a circuit when it can
be traced from one thermal of a power source back to the other thermal
without a break.
British Thermal Unit (BTU) - correct answer ✔The amount of heat necessary
to raise or lower 1 pound of water 1'F
Ampere - correct answer ✔A unit of measure for the rate of current flow one
ampere equals one coulomb per second.
What speed is a single electron move? - correct answer ✔Three inches per
hour at one amp of current flow.
What speed do radio waves move? - correct answer ✔186,000 miles per
second approx. the speed of light.
What is wavelength? - correct answer ✔The distance current will travel
during one AC cycle.
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