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

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