Electrical Concepts Review

These flashcards cover key electrical concepts related to voltage, current, circuits, and basic electronic principles.

What is the definition of voltage?

Electrical pressure, potential difference, or electromotive force.

What does torque refer to in physics?

The force that produces rotation, rotation, or torsion.

How is horsepower defined?

Rate of doing work. 1 horsepower = 746 watts

What is a BTU?

Amount of heat required to raise temperature of one pound of water one degree Fahrenheit

What constitutes a complete path (circuit)?

Closed circuit, power source, conductors, and load form a closed loop.

Ohm

Unit of resistance to current flow.

What defines an open circuit?

A circuit where no current can flow.

What is an ampere (Amp)?

The amount of electricity flowing through a circuit.

According to conventional theory, in what direction does current flow?

From positive to negative.

What is power in electrical terms?

Exist when electrical energy is changed or converted into some other form of energy such as heat or mechanic

What is the volt?

Referred to as electrical pressure, potential difference or electromotive force

Grounded circuit

The part that completes the circuit back to the power source.

According to electron theory, in what direction does current flow?

From negative to positive.

What is a short circuit?

A situation with very little or no resistance to current flow.

What does Ohm's Law state?

1 volt pushes 1 amp through 1 ohm.

What does a coulomb measure?

The quantity of electrons.

What is a watt a measure of?

The electrical energy converted.

What is the metric equivalent of the watt?

Joule.

What is an insulator?

Material that resists the flow of electricity.

How is electricity produced from chemical (ion flow)?

By the movement of entire ions.

What is the law of charges?

Opposites attract, and likes repel.

What is the Thirty-Two Rule in terms of electron orbits?

The maximum number of electrons in an orbit.

What is a conductor?

Material that provides an easy path for electron flow.

What common material is used for electronic components?

Silicon.

What does DC (Direct Current) mean?

Electricity flows in one direction.

What is the valence of an atom?

The outer shell of an atom.

What is the smallest part of an element that retains its properties?

Atom.

What is the charge of an electron?

Negative charge.

What principle produces electricity via friction?

Thermocouples/principles.

What is magnetism in relation to electricity generation?

A major driving force for electricity generation.

How is light (photons) related to electricity?

Electricity produced using photons.

What is piezoelectricity?

Electricity generated from bending or twisting crystals.

What is the charge of a proton?

Positive charge.

What constitutes the nucleus of an atom?

Proton + neutron combined.

What is matter?

Anything with mass that occupies space.

What is an element?

A substance that cannot be chemically divided.

What does a gluon do?

Holds protons and neutrons together.

What is a semiconductor?

A material that is neither a good conductor nor an insulator.

What is static electricity?

Electricity from static charges.

What does AC (Alternating Current) refer to?

Current that reverses direction.

What is a photon?

A massless particle of pure energy.

What is the charge of a neutron?

Neutral charge.