Capacitance

Capacitance

12th Grade

7 Qs

quiz-placeholder

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Capacitance

Capacitance

Assessment

Quiz

Physics

12th Grade

Practice Problem

Medium

Created by

TL Cheng

Used 37+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Capacitance is defined as _____

p.d. per unit charge

charge per unit p.d.

p.d. per unit current

current per unit p.d.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Two capacitors of capacitance 20 μF are connected in parallel. What is the combined capacitance?

10 μF

20 μF

30 μF

40 μF

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Three capacitors of capacitances 20 nF, 30 nF and 60 nF are connected in series. What is the combined capacitance?

5 nF

10 nF

20 nF

110 nF

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Two of the following arrangements of identical capacitors have the same combined capacitance. Which two?

Media Image
Media Image
Media Image
Media Image

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A photoflash capacitor (used in flash camera) has a capacitance of 1700 μF and a maximum working voltage of 330 V. How much energy is stored when it is charged up to the working voltage?

185 J

93 J

0.56 J

0.28 J

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A capacitor charged to 6 V stores 4 mJ of energy. If it is charged to 12 V, what is the energy stored (asuming it doesn't blow)?

4 mJ

8 mJ

16 mJ

48 mJ

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A capacitor of capacitance 4700 μF can store a maximum charge of 0.1645 C. If ten such capacitors are connected in parallel to a battery of e.m.f. 36 V, will the capacitors blow?

They will.

They won't.

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