Electronics ETA Certification Practice Exam 74 Questions
with Verified Answers
The "triboelectric effect" causes what kind of electricity? - CORRECT ANSWER
Static
The law of static electrical charges states: - CORRECT ANSWER like charges repel
Minute particles that make up all possible elements and still retain the unique
chemical characteristics of the element are called _____________. - CORRECT
ANSWER Atoms
A molecule is the smallest particle of matter that can exist by itself. (1) - CORRECT
ANSWER True (1)
A basic atom must contain what two types of subatomic particles? - CORRECT
ANSWER Electron and proton
An electron has _______________. - CORRECT ANSWER a Negative charge
What two types of energy are used throughout electronics? - CORRECT ANSWER
Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic field: - CORRECT
ANSWER at right angles to current flow
A material is magnetized when the: - CORRECT ANSWER domains are in alignment
A material that can be magnetized easily falls into this category: - CORRECT
ANSWER Ferromagnetic
Invisible lines of force that surround a magnet are called ___________________. -
CORRECT ANSWER magnetic flux lines
