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WorksheetsCapacitors
Total questions: 15
Worksheet time: 13mins
In a charged capacitor, the energy resides
The positive charges
Both the positive and negative charges
The field between the plates
Around the edge of the capacitor plates
The energy of a charged capacitor is given by the expression (q= charge on the conductor and C = its capacity)
2Cq2
Cq2
2C2q
2qC
The capacity of parallel plate condenser depends on
The type of metal used
The thickness of plates
The potential applied across the plates
The separation between the plates
The capacity of a parallel plate condenser is C . Its capacity when the separation between the plates is halved will be
4C
2C
C/2
C/4
Can a metal be used as a medium for dielectric
Depends on its shape
Depends on dielectric
YES
NO
When a slab of dielectric material is introduced between the parallel plates of a capacitor which remains connected to a battery, then charge on plates relative to earlier charge
Is less
Is same
Is more
May be less or more depending on the nature of the material introduced
125 identical drops each charged to the same potential of 50 Volts are combined to form a single drop. The potential of the new drop will be
50 V
250 V
500 V
1250 V
Two condensers of capacity 0.3 μ F and 0.6 μ F respectively are connected in series. The combination is connected across a potential of 6 Volts. The ratio of energies stored by the condensers will be
1/2
2
1/4
4
Three equal capacitors, each with capacitance are connected as shown in figure. Then the equivalent capacitance between and is
C
C/3
3C
3C/2
Change Q on a capacitor varies with voltage V . The area of triangle OAB represents
Capacitance
Capacitive reactance
Magnetic field between the plates
Energy stored in the capacitor
When a dielectric material is introduced between the plates of a charged condenser then electric field between the plates
Decreases
Increases
Remain constant
First (b) then (a)
A capacitor is charged to 200 volt it has 0.1 coulomb charge. When it is discharged, energy will be
1 J
4 J
20 J
10 J
The resultant capacitance between and in the following figure is equal to
1 μ F
3 μ F
2 μ F
1.5 μ F
During charging a capacitor variation of potential V of the capacitor with time t is shown as
Tick the correct option/options
Equivalent capacitance in series combination is least among all capacitors
Equivalent capacitance in series combination is greatest among all capacitors
Charge on capacitor plates changes when dielectric is inserted between the plates
Capacitance of a capacitor does not depends on charge
