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WorksheetsCapacitors
Total questions: 10
Worksheet time: 5mins
The circuit in the diagram contains two capacitors connected in parallel. What is the total capacitance of the circuit?
100 μF
65 μF
35 μF
30 μF
The circuit in the diagram contains two capacitors connected in series. The total capacitance of the circuit is 12 µF.What is the capacitance 𝐶?
19 μF
21 μF
16 μF
13 μF
When is an object said to be charged
When it has more charges than it can store
When it can accept no more charges
When the object has equal number of electrons and protons
None of the above
The simplest form of capacitor is made out of
three metal plates and between the plates is an insulating material
two metal plates and between the plates is a dielectric material
one metal plate and a dielectric material
What is a dielectric material?
It is a poor conductor of electricity
It is a conductor
it is an insulator
It is a good conductor of electricity
Capacitors are used to store....
charges
energy
electricity
two plates
The charging of the capacitor will stop when....
when the capacitor is overheated
the charging will never stop. it is a continuous process.
when the potential difference across capacitor matches the power supply connected to it
What happens to the charge on the plate during discharging?
the charges flow from one plate to the other through a resistor until the charge on the plate is zero.
the charges move from one plate to the other across the dielectric gap between the plates
the charges do not move and stay on the plates.
What happens to the current in the circuit during discharging of the capacitor?
current remains constant
current increases to a maximum value
current decreases until it becomes zero
The energy of a charged capacitor is given by the expression (q= charge on the conductor and C = its capacity)
2Cq2
Cq2
2C2q
2qC
