Site hosted by Angelfire.com: Build your free website today!
Main Desktop Lessons Desktop Review Desktop Lab Desktop Chart Desktop Search

              

111.
Which of the following is a correct description of the diagram to the right?      Answer

A.  Current from A to B and force on wire is down

B.  Current from A to B and force on wire is up

C.  Current from B to A and force on wire is down

D.  Current from B to A and force on wire is up

    

 

112.
The magnetic field to the right creates the path in red of a moving proton.

A.  Clockwise path with field coming out of the screen.
B.  Clockwise path with field going into screen.
C.  Counter-Clockwise path with field coming out of the screen.
D.  Counter-Clockwise path with field going into screen.

Answer

      

 

113.
The force on the wires to the right

Answer

A. Pushes wires apart  C. Top wire into screen and bottom wire out of screen
   
B. Pulls wires together D. Top wire out of screen and bottom wire into screen
     

 

114.
Which diagram to the right is a correct electric field diagram?

Answer

      

 

115.
X, Y, and Z are identical insulated metal spheres.

X has an initial charge of + 3.0 x 10 -6 C
Y has an initial charge of - 6.0 x 10 -6  C
Z has an initial charge of + 9.0 x 10 -6 C

The spheres simultaneously touch and then separate.  Which of the following describes the conditions after separating?   Answer
   

A. Each sphere has  + 2.0 x 10 -6 C C. Each sphere is neutral.
B. Each sphere has + 6.0 x 10 -6 C D. Each sphere has its original charge.
     

 

116. A charged particle is deflected by a magnetic field.  The magnitude of the magnetic force is directly proportional to   Answer
    
A. polarity of the magnetic field C. static charge of the particle
B. polarity of the particle D. mass of the particle
      

 

117.
The proton to the left is entering the electric field.  The electric field will deflect the proton

Answer

A. up C. into the paper
B. down D. out of the paper
       

 

118.
Which graph to the right is correct?

Answer

      

 

119. A +4.0 coulomb charge is moved from point X to infinity by an electric field that does 12.0 joules of work on the charge.  What is the electric potential at point X?    Answer
       
A. 0.33 C. 3.0
B. 1.5 D. 48
      

 

120. A metal sphere has a - 6.4 x 10 -19 C charge.  This charge is created by an excess of  Answer
     
A. 2 electrons C. 4 electrons
B. 2 protons D. 4 protons