Capacitance and Capacitor
Quiz by Ymije Jee
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
- Q1
A parallel-plate capacitor has a capacitance of 20 µF. What potential difference across the plates is required to store 7.2 x 10-4 C on this capacitor?
1.4 x 10-8 V
2.2 x 10-2 V
68 V
36 V
60s - Q2
Increasing the separation of the two charged parallel plates of a capacitor, which are disconnected from a battery, will produce what effect on the capacitor?
increase capacitance
increase charge
decrease charge
decrease capacitance
60s - Q3
Three capacitors of 1.0 µF, 1.5 µF, and 2.0 µF are connected in series. Find the combined capacitance.
0.46 µF
2.2 µF
4.5 µF
4.0 µF
60s - Q4
If three 4.0 µF capacitors are connected in parallel, what is the combined capacitance?
12 µF
0.75 µF
0.46 µF
8.0 µF
60s - Q5
Two capacitors with capacitance's of 1.0 µF and 0.50 µF, respectively, are connected in series. The system is connected to a 100 V battery. What charge accumulates on the 1.0 µF capacitor?
50 µC
150 µC
100 µC
33 µC
60s - Q6
Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true?
There is the same potential difference across both capacitors.
There is more charge stored on CA.
There is more charge stored on CB.
There is the same charge stored on each capacitor.
30s - Q7
What is the equivalent capacitance between points a and b? All capacitors are 1.0 µF.
4.0 µF
17 µF
0.6 µF
0.25 µF
30s - Q8
A 0.25 µF capacitor is connected to a 400-V battery. What potential energy is stored in the capacitor?
1.2 x 10-12 J
0.020 J
0.040 J
1.0 x 10-14 J
30s - Q9
Inserting a dielectric material between two charged parallel conducting plates, originally separated by air and disconnected from a battery, will produce what effect on the capacitor?
increase charge
decrease capacitance
increase voltage
increase capacitance
30s - Q10
The dielectric strength of Rutile is 6.0 x 106 V/m, which corresponds to the maximum electric field that the dielectric can sustain before breakdown. What is the maximum charge that a 10 x 10 F capacitor with a 1.0-mm thickness of Rutile can hold?
0.3 µC
0.6 µC
1.7 µC
6.0 µC
30s - Q11
A parallel-plate capacitor has dimensions 4.0 cm x 5.0 cm. The plates are separated by a 1.0 mm thickness of paper (dielectric constant k = 3.7). What is the charge that can be stored on this capacitor, when connected to a 1.5 V battery? (Ɛ0 = 8.85 x 10-12 C2/Nm2)
4.8 x 10-12 C
20 x 10-12 C
9.8 x 10-11 C
4.8 x 10-11 C
120s - Q12
Very large capacitors have been considered as a means for storing electrical energy. If we constructed a very large parallel-plate capacitor of plate area 1.0 m2 using paper (k = 3.7) of thickness 1.0 mm as a dielectric, how much electrical energy would it store at a plate voltage of 5 000 V?
45 000 J
0.41 J
90 J
9 000 J
120s - Q13
The capacitance of a parallel-plate capacitor can be increased by:
increasing the plate separation
increasing the charge
decreasing the charge
decreasing the plate separation
20s - Q14
What is the voltage across the plates of the capacitor if the capacitance is 10 uF and the Charge stored is 30 uC?
30 V
3 V
0.333 V
300 V
20s - Q15
created out of two metal plates and an insulating material called a dielectric
A fixed resistor
A variable resistor
An inductor
A capacitor
20s
