test 1

Question 1

Question #1: Multiple Choice - choose 1 answer (1 point)

20 milliamperes is the same as ________. (Remember, 1 milliampere = 0.001 ampere.)

Answer 1

A) 0.00002 ampere 
B) 200 kA
C) 0.20 amperes
D) 2.0 mA
E) 0.02 amperes **

Question 2

The orbital shell that has a maximum electron capacity of 18 electrons is the ___________ shell.

Answer 2

A) Third **
B) Valence 
C) Fourth
D) First
E) Second

Question 3

The major factor for determining whether a particular element is a conductor, a semiconductor, or an insulator is

Answer 3

A) The number of valence electrons in the second shell.
B) The amount of free nucleus movement.
C) The amount of free nucleus movement.
D) The number of electrons in the valence shell.**
E) The amount of random drift.

Question 4

Elements that are called conductors

Answer 4

A) Do not give up their valence electrons very easily.
B) Electrical activity does not occur readily.
C) Have very few valence electrons.**
D) Have a lot of valence electrons.
E) Permit very little free electron movement.

Question 5

The term voltage normally refers to

Answer 5

A) The algebraic difference between the potentials at two points.
B) The amount of charge 6.28 x 10 to the power of 18 electrons produce.
C) The amount of electrons passing a given point in a wire.
D) The measurement of the difference in potential between two charges.**
E) The heat produced by a current flowing through a resistance.

Question 6

The ampere

Answer 6

A) Indicates the amount of charge contained in 1 coulomb.
B) Indicates the amount of charge on an object.
C) Is a measured unit that indicates the difference in potential between two charges.
D) Is the basic unit of measurement of electron rotation.
E) Indicates how many coulombs pass a given point during 1 second. **

Question 7

Electric current is actually produced by

Answer 7

A) The movement of atoms through a conductor.
B) The drifting movement of free electrons in a conductor.
C) The free protons moving from one end of the conductor to the opposite end.
D) The transfer of energy from valence electron to valence electron as a result of applied charges.**
E) The random movement of positively charged particles in a material.