Electronics ETA Certification Practice Exam Questions and Answers

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