A - Electrical Theory Flashcards
An element consists of:
One of a kind atom.
Electrons have a:
Negative charge.
The nucleus of an atom has:
Protons and neutrons.
A conductor of electricity is a material that:
Allows the electrons to move through it.
Atoms consist of three still smaller particles called:
Electron, proton, and neutron.
Of these three particles, the positively charged particle is the …? and the negatively charged particle is the …? The particles found in the nucleus of the atom are the … and the …?
One of these three particles, the positively charged particle is the proton and the negatively charged particle is the is the electron. The particles found in the nucleus of the atom are the neutron and the proton.
An atom that has gained a surplus of electrons is said to be a …? ion and if the atom has lost a number of electrons, it is called a … ion?
An atom that has gained a surplus of electrons is said to be a negatively charged ion and if the atom has lost a number of electrons, it is called a positively charged ion.
The electrons found in the outermost orbit of the atom are know as ….?
The electrons found in the outermost orbit of the atom are known as valance electrons.
Most insulators are …?
Compounds of two or more elements.
Voltage is electrical:
Force.
The opposition to electron flow is:
Resistance.
Resistance of a conductor is determined by:
Length, cross-sectional area, temperature and type of material.
Current is electrical:
Flow.
Which of the following forms of voltage sources require polarity markings: Static electricity, Direct voltage, alternating voltage, or all three?
Direct voltage.
Technicians should wear static straps when working on any electronic components to prevent discharges of damaging voltages that are produced by:
Friction.
