ENERGY STORED IN A CONDENSER AND TYPES OF CAPACITORS
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Electrostatic Potentials and Capacitance

268045 Two unequal capacitors, initially uncharged,are connected in series across a battery. Which of the following is true

1 The potentialacrosseach is the same
2 The charge on each is the same
3 The energy stored in each is the same
4 The equivalent capacitance is the sum of the two capacitances
Electrostatic Potentials and Capacitance

268046 Which of the following will not increase the capacitance of an air capacitor?

1 adding a dielectric in the space between the plates
2 increasing the area of the plates
3 moving the plates closer together
4 increasing the voltage
Electrostatic Potentials and Capacitance

268047 In a parallel-plate capacitor, the region between the plates isfilled by a dielectric slab. The capacitor is connected to a cell and the slab is taken out. Then

1 some chargeis drawn from the cell
2 some chargeis returned to the cell
3 the potential difference across the capacitoris reduced
4 no work isdoneby an external agentintaking theslab out
Electrostatic Potentials and Capacitance

268048 Which of the following statements are correct?
a) When capacitors are connected in parallel the effective capacitance is less than the individual capacitances
b) The capacitances of a parallel plate capacitor can be increased by decreasing the separation of plates
c) When capacitors are connected in series the effective capacitance is less than the least of the individual capacities
d) In a parallel plate capacitor the electrostatic energy is stored on the plates

1 (a) and (b)
2 (a) and (c)
3 (c) and (d)
4 (b) and (c)
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Electrostatic Potentials and Capacitance

268045 Two unequal capacitors, initially uncharged,are connected in series across a battery. Which of the following is true

1 The potentialacrosseach is the same
2 The charge on each is the same
3 The energy stored in each is the same
4 The equivalent capacitance is the sum of the two capacitances
Electrostatic Potentials and Capacitance

268046 Which of the following will not increase the capacitance of an air capacitor?

1 adding a dielectric in the space between the plates
2 increasing the area of the plates
3 moving the plates closer together
4 increasing the voltage
Electrostatic Potentials and Capacitance

268047 In a parallel-plate capacitor, the region between the plates isfilled by a dielectric slab. The capacitor is connected to a cell and the slab is taken out. Then

1 some chargeis drawn from the cell
2 some chargeis returned to the cell
3 the potential difference across the capacitoris reduced
4 no work isdoneby an external agentintaking theslab out
Electrostatic Potentials and Capacitance

268048 Which of the following statements are correct?
a) When capacitors are connected in parallel the effective capacitance is less than the individual capacitances
b) The capacitances of a parallel plate capacitor can be increased by decreasing the separation of plates
c) When capacitors are connected in series the effective capacitance is less than the least of the individual capacities
d) In a parallel plate capacitor the electrostatic energy is stored on the plates

1 (a) and (b)
2 (a) and (c)
3 (c) and (d)
4 (b) and (c)
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Electrostatic Potentials and Capacitance

268045 Two unequal capacitors, initially uncharged,are connected in series across a battery. Which of the following is true

1 The potentialacrosseach is the same
2 The charge on each is the same
3 The energy stored in each is the same
4 The equivalent capacitance is the sum of the two capacitances
Electrostatic Potentials and Capacitance

268046 Which of the following will not increase the capacitance of an air capacitor?

1 adding a dielectric in the space between the plates
2 increasing the area of the plates
3 moving the plates closer together
4 increasing the voltage
Electrostatic Potentials and Capacitance

268047 In a parallel-plate capacitor, the region between the plates isfilled by a dielectric slab. The capacitor is connected to a cell and the slab is taken out. Then

1 some chargeis drawn from the cell
2 some chargeis returned to the cell
3 the potential difference across the capacitoris reduced
4 no work isdoneby an external agentintaking theslab out
Electrostatic Potentials and Capacitance

268048 Which of the following statements are correct?
a) When capacitors are connected in parallel the effective capacitance is less than the individual capacitances
b) The capacitances of a parallel plate capacitor can be increased by decreasing the separation of plates
c) When capacitors are connected in series the effective capacitance is less than the least of the individual capacities
d) In a parallel plate capacitor the electrostatic energy is stored on the plates

1 (a) and (b)
2 (a) and (c)
3 (c) and (d)
4 (b) and (c)
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Electrostatic Potentials and Capacitance

268045 Two unequal capacitors, initially uncharged,are connected in series across a battery. Which of the following is true

1 The potentialacrosseach is the same
2 The charge on each is the same
3 The energy stored in each is the same
4 The equivalent capacitance is the sum of the two capacitances
Electrostatic Potentials and Capacitance

268046 Which of the following will not increase the capacitance of an air capacitor?

1 adding a dielectric in the space between the plates
2 increasing the area of the plates
3 moving the plates closer together
4 increasing the voltage
Electrostatic Potentials and Capacitance

268047 In a parallel-plate capacitor, the region between the plates isfilled by a dielectric slab. The capacitor is connected to a cell and the slab is taken out. Then

1 some chargeis drawn from the cell
2 some chargeis returned to the cell
3 the potential difference across the capacitoris reduced
4 no work isdoneby an external agentintaking theslab out
Electrostatic Potentials and Capacitance

268048 Which of the following statements are correct?
a) When capacitors are connected in parallel the effective capacitance is less than the individual capacitances
b) The capacitances of a parallel plate capacitor can be increased by decreasing the separation of plates
c) When capacitors are connected in series the effective capacitance is less than the least of the individual capacities
d) In a parallel plate capacitor the electrostatic energy is stored on the plates

1 (a) and (b)
2 (a) and (c)
3 (c) and (d)
4 (b) and (c)
For More Updates join with Us