Bushong Chapter 4 Exam Questions with Correct Answers Rated 100%
Electron Spin - Answers Electrons behave as if they rotate on an axis clockwise or counterclockwise
Parallel Circuit - Answers Contains elements that are connected at their ends rather than lying in a line
along a conductor
Direct Current (DC) - Answers Electrons made to flow in one direction along the conductor
Coulomb's Law - Answers The electrostatic force is directly proportional to the product of the
electrostatic charges and inversely proportional to the square of the distance between them
Magnetic Domain - Answers An accumulation of many atomic magnets with their dipoles aligned
A coil of wire is called... - Answers A solenoid
Electrons at high voltage have ____ potential energy and ______ capacity to do work - Answers High,
High
Electrostatics is... - Answers The study of stationary electric charges
Alternating Current (AC)... - Answers Electrons that flow alternately in opposite directions
Ammeter... - Answers Current measuring device
Insulator (materials and characteristics) - Answers Rubber/Glass, Does not permit electron flow,
extremely high resistance, necessary with high voltage
Electric Power is measured in.... - Answers Watts (W)
Power (W)= voltage (V) x current (A)
Electrification can by created by 3 things... - Answers Contact, Friction, or Induction
Magnetic Susceptibility - Answers The degree to which a material can be magnetized
Example of a Natural Magnet - Answers the Earth
3 rules for Series Circuits - Answers 1. The total resistance is equal to the sum of the individual
resistance.
2. The current through each circuit element is the same and is equal to the total circuit current.
3. The sum of the voltages across each circuit element is equal to the total circuit voltage.
4 factors of Faraday's Law - Answers 1. The strength of the magnetic field
2. The velocity of the magnetic field as it moves past the conductor.
, 3. The angle of the conductor to the magnet field.
4. The number of turns in the conductor.
An _____ ______ powers the rotating anode of an x-ray tube. - Answers Induction motor
Permanent Magnets (description) - Answers Available in many shapes and sizes.
Usually made of Iron.
IE: A compass
The direction of electric current is always _____ that of electron flow. - Answers Opposite
Unit of Electric Charge... - Answers Coulomb (C)
1C = 6.3x10^18
The lines of a magnetic field are always _____ _____. - Answers Closed Loops
Unlike charges _______ while like charges ______. - Answers Attract, Repel
Electric circuit.... - Answers Resistance is controlled and the conductor is made into a closed path.
I = ? - Answers Current
Electric Potential is measured in... - Answers Units of joule per coulomb, or volt
What is Alessandro Volta known for.... - Answers In the 1700s. Created the Voltaic Pile which was the
precursor of the modern battery. Made up of zinc and copper plates
Conductor... - Answers Any substance through which electrons flow easily. Ie: copper or water.
R = ? - Answers Resistance
Superconductivity - Answers -Exhibit no resistance below a critical temperature (Tc)
-Dicovered in 1911
-Developed commercially in early 1960s
The _____ behaves as a huge reservoir for stray electric charges. In this capacity, it is called a/an _____
_____. - Answers Earth, Electric Ground
Superconductor (materials/characteristics) - Answers Niobium and Titanium
No resistance to electron flow, No electric potential required, must be very cold.
Magnetic Permeability - Answers The ability of a material to attract the lines of magnetic field intensity
Electron Spin - Answers Electrons behave as if they rotate on an axis clockwise or counterclockwise
Parallel Circuit - Answers Contains elements that are connected at their ends rather than lying in a line
along a conductor
Direct Current (DC) - Answers Electrons made to flow in one direction along the conductor
Coulomb's Law - Answers The electrostatic force is directly proportional to the product of the
electrostatic charges and inversely proportional to the square of the distance between them
Magnetic Domain - Answers An accumulation of many atomic magnets with their dipoles aligned
A coil of wire is called... - Answers A solenoid
Electrons at high voltage have ____ potential energy and ______ capacity to do work - Answers High,
High
Electrostatics is... - Answers The study of stationary electric charges
Alternating Current (AC)... - Answers Electrons that flow alternately in opposite directions
Ammeter... - Answers Current measuring device
Insulator (materials and characteristics) - Answers Rubber/Glass, Does not permit electron flow,
extremely high resistance, necessary with high voltage
Electric Power is measured in.... - Answers Watts (W)
Power (W)= voltage (V) x current (A)
Electrification can by created by 3 things... - Answers Contact, Friction, or Induction
Magnetic Susceptibility - Answers The degree to which a material can be magnetized
Example of a Natural Magnet - Answers the Earth
3 rules for Series Circuits - Answers 1. The total resistance is equal to the sum of the individual
resistance.
2. The current through each circuit element is the same and is equal to the total circuit current.
3. The sum of the voltages across each circuit element is equal to the total circuit voltage.
4 factors of Faraday's Law - Answers 1. The strength of the magnetic field
2. The velocity of the magnetic field as it moves past the conductor.
, 3. The angle of the conductor to the magnet field.
4. The number of turns in the conductor.
An _____ ______ powers the rotating anode of an x-ray tube. - Answers Induction motor
Permanent Magnets (description) - Answers Available in many shapes and sizes.
Usually made of Iron.
IE: A compass
The direction of electric current is always _____ that of electron flow. - Answers Opposite
Unit of Electric Charge... - Answers Coulomb (C)
1C = 6.3x10^18
The lines of a magnetic field are always _____ _____. - Answers Closed Loops
Unlike charges _______ while like charges ______. - Answers Attract, Repel
Electric circuit.... - Answers Resistance is controlled and the conductor is made into a closed path.
I = ? - Answers Current
Electric Potential is measured in... - Answers Units of joule per coulomb, or volt
What is Alessandro Volta known for.... - Answers In the 1700s. Created the Voltaic Pile which was the
precursor of the modern battery. Made up of zinc and copper plates
Conductor... - Answers Any substance through which electrons flow easily. Ie: copper or water.
R = ? - Answers Resistance
Superconductivity - Answers -Exhibit no resistance below a critical temperature (Tc)
-Dicovered in 1911
-Developed commercially in early 1960s
The _____ behaves as a huge reservoir for stray electric charges. In this capacity, it is called a/an _____
_____. - Answers Earth, Electric Ground
Superconductor (materials/characteristics) - Answers Niobium and Titanium
No resistance to electron flow, No electric potential required, must be very cold.
Magnetic Permeability - Answers The ability of a material to attract the lines of magnetic field intensity
