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WorksheetsCapacitors
Total questions: 15
Worksheet time: 30mins
Tick all the factors that affect capacitance below:
Area
Dielectric
Distance
Power Rating
What is the unit of capacitance
Ohm
Henry
Farad
Watt
35V is stamped on the side of a capacitor. This means
Don't exceed 35 Volts (working voltage)
Provide with a minimum of 35 Volts or the capacitor won't work
35 micro-Farads
Connecting Capacitors in parallel means
add the capacitance up
the distance between plated has increased
no change
Capacitors can be manufactured with polarity
True
False
Brown, Black, with a Red dot tantalum capacitor value is?
1000 micro-farads
1000 pico-farads
2000 micro-farads
2000 pico-farads
102K printed on a ceramic capacitor means?
1000 micro-farads
100 micro-farads
10000 micro-farads
1000 pico-farads
Tick 2 correct answers with regards to Variable Capacitors
Air is the dielectric
Area of Plates is varied by rotating one of the plates inside the other
Dielectric is changed
The distance between the plates is varied
After 1 time constant, a capacitor charge will be at?
63.2%
100%
36.2%
71.2%
How many time constants does it take for a capacitor to fully charge?
1
5
4
8
If you charge up a capacitor from zero to 100V, what voltage will it be after 1 time constant?
1 Volt
6.32 Volts
63.2 Volts
100 Volts
What is the dielectric constant of air?
1
2
10
3
What is the formula for capacitors in parallel?
CT = C1 + C2 + C3
CT = C1 x C2 x C3
1/CT = 1/(C1 + C2 + C3)
If you have a 1 milli-farad capacitor and a 10 kilo-ohm resistor in series, what is the time constant?
1 second
10 seconds
100 seconds
5 seconds
How long would it take to fully charge up a 1 milli-farad capacitor in series with a 10 kilo-ohm resistor?
5 Seconds
1 Second
50 Seconds
10 Seconds
