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WorksheetsElectric Fields & Capacitors
Total questions: 17
Worksheet time: 9mins
Which field line diagrams are drawn incorrectly?
A
B
C
D
What, if anything, is wrong with the field line diagram above?
It is wrong because the field lines should point towards the positive charges.
It is wrong because the field lines should be straight arrows.
It is wrong because field lines cannot cross each other.
The field line diagram is correct as drawn.
Which particle(s), if any, are positively charged?
C
D
Both C and D
Neither C nor D
Which particle has the larger magnitude of charge?
C
D
Same
Impossible to determine
Which of the following statements are false?
This is an example of a uniform electric field.
The two particles must attract each other.
The field lines show an example of a dipole.
The two charges are equal in magnitude.
This model shows how clouds can become charged. Which of the following is false?
Each cloud is a polarized object on its own.
The top and bottom cloud form a uniform electric field.
A dipole is created from the two clouds together.
The clouds store energy like a parallel-plate capacitor.
Which point has the largest magnitude of electric field?
A
C
E
all the same
If a proton were placed between the two plates, at which point would it have the greatest electrical potential energy?
A
C
E
all the same
If an electron were placed between the two plates, at which point would it have the greatest electrical potential energy?
A
C
E
all the same
At which point could a proton and an electron be placed in order to have equal magnitude of electrical potential energy?
A
C
E
all the same
At which point would an electron have the largest magnitude of electric potential energy?
A
B
C
All the same
The electric field (pink) between two charged capacitors is pictured above. Which is the correct energy flow diagram of a proton released from rest at point B?
None of the above.
The energy flow diagram could represent
an electron moving from B to D
a proton moving from D to B
an electron moving from D to A
a proton moving from D to C
All of the following are common examples of capacitors EXCEPT:
lightning clouds
Van der Graaff generators
batteries
defibrilators
What change would NOT increase the energy stored in a capacitor?
connect it to a larger voltage source
move the plates farther apart
make it have a larger surface area
Which graph would best represent the relationship between voltage and energy stored in a capacitor?
A
B
C
D
A capacitor stores an energy of 10J. If its area is doubled and the distance between its plates is cut in half, what would the new stored energy be?
2.5 J
5 J
20 J
40 J
