Electronics ETA Certification Practice Exam 2024 Questions And Answers.
Electronics ETA Certification Practice Exam 2024 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: AnswerFerromagnetic 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 What class of fire extinguisher is used on an oil fire? Answer- B It is dangerous to use wooden handled tools around high voltage due to their ability to absorb moisture. (2) Answer- True (2) In order to eliminate possible fire hazards, rags should be stored in ________________ Answer- metal containers.
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