30 Questions
What does the symbol 'V' represent in the context of electricity?
Volts
What is the formula for calculating current in a DC circuit?
𝑰 = 𝑷 ÷ 𝑬
What is the formula to calculate power in an AC single-phase circuit?
𝑷 = 𝑬 × 𝑰 × 𝑷𝑭
What is the unit of measurement for resistance in an electrical circuit?
Ohms
In a DC circuit, what does the formula '𝑷 = 𝑬 × 𝑰' represent?
Power
What is the term used to describe a group or series of different atoms?
Molecule
What does the symbol 'PF' stand for in electrical engineering?
Power Factor
Which particle adds atomic weight to an atom but does not have any electrical charge?
Neutron
What creates a natural attraction or bonding between the proton and electron in balanced atoms?
Cancellation of charges
What type of particle is responsible for electron flow (electricity) and can be positively or negatively charged?
Ion
Which type of electrons are free to move from atom to atom and orbit on the outermost ring of an atom?
Free electrons
What type of materials stop the flow of electricity due to the 5 to 8 electrons held tightly in the outer ring?
Insulators
Which theory states that current flows from negative to positive?
Electron Theory
What term refers to materials with exactly 4 free electrons in the outer orbit and are neither conductors nor insulators?
Semiconductors
What type of particles can release an electron to become balanced again when they lose or gain an electron?
Ions
What is the term for the building blocks in the universe for mass, which is the smallest particle in which an element or substance can be divided without losing its property?
Atom
What is the formula to calculate power in an AC three-phase circuit?
𝑷 = 1.732 × 𝑬 × 𝑰 × 𝑷𝑭
What does the symbol 'VA' represent in the context of electricity?
Volts Ampere
What is the formula to calculate current in a single-phase AC circuit?
𝑰 = 𝑷 ÷ (𝑬 × 𝑷𝑭)
What type of power is measured in kilowatt-hours (kWh)?
Real Power
What is the formula for calculating efficiency in a DC circuit?
(𝐸 × 𝐻𝑃) ÷ (𝑉 × 𝐴)
What is the symbol 'R' or 'Ω' used to represent in the context of electricity?
Resistance
What term refers to the group or series of different atoms?
Molecule
In the context of electricity, what does the symbol 'V' represent?
Voltage
What is the term for the building blocks in the universe for mass, which is the smallest particle in which an element or substance can be divided without losing its property?
Atom
What type of particles can release an electron to become balanced again when they lose or gain an electron?
Ions
Which type of electrons are free to move from atom to atom and orbit on the outermost ring of an atom?
Free Electrons
What creates a natural attraction or bonding between the proton and electron in balanced atoms?
Free Electrons
What does the symbol 'PF' stand for in electrical engineering?
Power Factor
What type of materials stop the flow of electricity due to the 5 to 8 electrons held tightly in the outer ring?
Insulators
Test your knowledge on electricity horsepower, power factor, input watts, and efficiency with this quiz. Covering symbols, descriptions, formulas, equations, and laws related to direct current, this quiz will help you understand electrical engineering concepts.
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