Unit II- The X-Ray Circuit Exam Review Questions With Complete Solution

Unit II- The X-Ray Circuit Exam Review Questions With Complete Solution *Nature of Electricity 1. is the study of stationary electric charges 2. is the study of charges in motion and is often considered "electricity" - ANS-1. electrostatics 2. electrodynamics -Electric Charge 1. Is a property of __ 2. Smallest unit of charges are the: 2 3. Si measurement of charge is the __: and it equals __ 4. Conductivity increases with an __ in the number of free electrons in an atom - ANS-1. matter 2. proton, electron 3. coulomb;6.25 X 10^18 electrons 4. increase *Nature of Electricity 1. __ increases with an increase in free electrons 2. Conductors: 3 3. Insulators: 3 - ANS-1. conductivity 2. copper, gold, aluminum 3. plastic, glass, and rubber *Five General Principals of Electrostatics 1. Like charges __ and unlike charges __ 2. The electrostatic charges between two charges is __ to the product of their quantities and __ to the square of the distance between them(aka coulombs law) 3. Electric charges reside only on the __ of a conductor 4. The concentration of charges on a curved surface of a conductor is __ where the curvature is greatest 5. Only __ are free to move in solid conductors - ANS-1. repel, attract 2. directly proportional, indirectly proportional 3. external surface 4. greatest 5. negative charges(electrons) *Electrification of Charges 1. electrons are transferred from one object to another by rubbing two objects together 2. electrons are transferred from a charged object to a conductor by touching together 3. process by which an uncharged metallic object experiences a shift of electrons when brought into electric field of a charged object - ANS-1. friction 2. contact 3. induction *Electric Potential 1. In order for electricity to flow, a __ must exist 2. is the ability to do work because of separation of charges 3. Electrons follow the path of __ - ANS-1. potential difference 2. electric potential 3. least resistance CONTINUES...