MCQ FOR CAPACITOR

 

1). ___________ stores charge

Capacitors

Resistors

Both a and b

None of the above

2). The parallel metal plates of the capacitor separated by ________

Insulators

Isolators

Both a and b

None of the above

3). The nominal capacitance of the paper capacitors is around ________

0.1uF to 10uF

0.01uF to 10uF

0.001uF to 10uF

0.5uF to 10uF

4). The working voltage of the paper capacitors is around ________

100v to 200v

200v to 300v

300v to 600v

200v to 600v

5). The typical tolerance of the paper capacitors is ________

2%

4%

6%

10%

6). The temperature coefficient of the paper capacitors is ________

±100 deg/c

±400 deg/c

±800 deg/c

±1000 deg/c

7). The disadvantage of the paper capacitor is _______

Size

Suspectible and hygroscopic to moisture

Both a and b

None of the above

8). The advantage of the paper capacitor is _______

Low cost

Voltage rating is high

Stable

All of the above

9). The dissipation factor of paper capacitors is _____

1%

4%

6%

10%

10). The dielectric absorption of paper capacitors is __________

2.5%

4%

6%

10%

11). How many conductors does the capacitor consist of?

One

Two

Three

Four

12). The capacitance measured in ______

Watts

Henry

Farads

None of the above

13). The dielectric materials increase the ________

Capacitance

Resistivity

Both a and b

None of the above

14). Capacitor obey _________ law

Coulombs

Ohms law

Kirchhoffs law

All of the above

15). The relationship between frequency, capacitance, and capacitor reactance is given by _____

Capacitance reactance=1/2πfc

Capacitance reactance=1/2πf

Capacitance reactance=1/2fc

Capacitance reactance=1/4πfc

16). The capacitors categorized into _______ groups

One

Two

Three

Four

17). Which one is a polarized capacitor?

Electrolytic capacitor

Ceramic capacitor

Silver capacitor

Teflon capacitor

18). Which one is a non-polarized capacitor?

Polystyrene capacitor

Ceramic capacitor

Teflon capacitor

All of the above

19). _________ are the dielectric materials

Air or Vaccum

Rubber, oil, paper

Mica, glass, ceramic

All of the above

20). What is the standard unit of electric charge?

Watts

Henry

Farads

Coulombs

21). To store the electric charge the ultra-capacitors uses ______ effect

Single layer

Double layer

Both a and b

None of the above

22). The advantages of ultra-capacitors are _______

Long life

Transient response is fast

Efficiency is high

All of the above

23). The capacitance range of supercapacitors is from ________

100 farad to 5000 farad

200 farad to 5000 farad

300 farad to 5000 farad

400 farad to 5000 farad

24). The supercapacitors are also known as ________

Ultracapacitors

Electrical double-layer capacitors

Ultra or electrical double-layer capacitors

None of the above

25). The hybrid capacitors are categorized into ______

One

Two

Three

Four