Physics-
General
Easy
Question
The capacitors in figure are initially uncharged and are connected as in the diagram with switch S open. The applied potential difference is 
.
What is the potential difference 
- 120 V
- 100 V
- 150 V
- 115 V
The correct answer is: 120 V
Related Questions to study
physics-
i) In an isolated system (neither connected to the terminal of a battery nor to any other source of charge e.g. each) net charge remains constant.
ii) From two terminal of a battery or from two plates of a capacitor equal and opposite charges enter or leave.
Question: Two capacitors of capacity 
and 
are charged to 100V and 50 Separately and connected as shown. Now all the three switches 
and 
are closed.
Suppose 
and 
be the magnitudes of charges flown from switches 
and after they are closed. Then :
i) In an isolated system (neither connected to the terminal of a battery nor to any other source of charge e.g. each) net charge remains constant.
ii) From two terminal of a battery or from two plates of a capacitor equal and opposite charges enter or leave.
Question: Two capacitors of capacity and are charged to 100V and 50 Separately and connected as shown. Now all the three switches and are closed.
Suppose and be the magnitudes of charges flown from switches and after they are closed. Then :
physics-General
physics-
i) In an isolated system (neither connected to the terminal of a battery nor to any other source of charge e.g. each) net charge remains constant.
ii) From two terminal of a battery or from two plates of a capacitor equal and opposite charges enter or leave.
Question: Two capacitors of capacity and are charged to 100V and 50 Separately and connected as shown. Now all the three switches and are closed.
Charges on both the capacitors in steady state will be : (on first ):
i) In an isolated system (neither connected to the terminal of a battery nor to any other source of charge e.g. each) net charge remains constant.
ii) From two terminal of a battery or from two plates of a capacitor equal and opposite charges enter or leave.
Question: Two capacitors of capacity and are charged to 100V and 50 Separately and connected as shown. Now all the three switches and are closed.
Charges on both the capacitors in steady state will be : (on first ):
physics-General
physics-
i) In an isolated system (neither connected to the terminal of a battery nor to any other source of charge e.g. each) net charge remains constant.
ii) From two terminal of a battery or from two plates of a capacitor equal and opposite charges enter or leave.
Question: Two capacitors of capacity and are charged to 100V and 50 Separately and connected as shown. Now all the three switches and are closed.
Which plate (s) form an isolated system :
i) In an isolated system (neither connected to the terminal of a battery nor to any other source of charge e.g. each) net charge remains constant.
ii) From two terminal of a battery or from two plates of a capacitor equal and opposite charges enter or leave.
Question: Two capacitors of capacity and are charged to 100V and 50 Separately and connected as shown. Now all the three switches and are closed.
Which plate (s) form an isolated system :
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Two capacitors of 2mF and 3mF are charged to 150 volt and 120 volt respectively. The plates of capacitor are connected as shown in the figure. A discharged capacitor of capacity 1.5mF falls to the free ends of the wire. Then
Two capacitors of 2mF and 3mF are charged to 150 volt and 120 volt respectively. The plates of capacitor are connected as shown in the figure. A discharged capacitor of capacity 1.5mF falls to the free ends of the wire. Then
physics-General
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Two capacitors of equal capacitance 
are shown in the figure. Initially, while the switch 
is open, one of the capacitors is uncharged and the other carries charge 
. The energy stored in the charged capacitor is 
. Sometimes after the switch is closed, the capacitors 
and 
carry charges 
and 
, respectively; the voltages across the capacitors are 
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and the energies stored in the capacitors are 
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Two capacitors of equal capacitance are shown in the figure. Initially, while the switch is open, one of the capacitors is uncharged and the other carries charge . The energy stored in the charged capacitor is . Sometimes after the switch is closed, the capacitors and carry charges and , respectively; the voltages across the capacitors are and and the energies stored in the capacitors are and . Which of the following statements is INCORRECT ? The figure shows a diagonal symmetric arrangement of capacitors and a battery
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Four capacitors and a battery are connected as shown. The potential drop across the 
capacitor is 6 V. Then the :
Four capacitors and a battery are connected as shown. The potential drop across the capacitor is 6 V. Then the :
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In the circuit shown, each capacitor has a capacitance C. The emf of the cell is E. If the switch S is closed
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Find the equivalent capacitance across A & B
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A capacitor is made of a flat plate of area A and a second plate having a stair-like structure as shown in figure. The width of each stair is a and the height is b. Find the capacitance of the assembly.
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The distance between plates of a parallel plate capacitor is 5 d. Let the positively charged plate is at x=0 and negatively charged plate is at x=5 d. Two slabs one of conductor and other of a dielectric of equal thickness 
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The distance between plates of a parallel plate capacitor is 5 d. Let the positively charged plate is at x=0 and negatively charged plate is at x=5 d. Two slabs one of conductor and other of a dielectric of equal thickness are inserted between the plates as shown in figure. Potential versus distance graph will look like :
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The plates S and T of an uncharged parallel plate capacitor are connected across a battery. The battery is then disconnected and the charged plates are now connected in a system as shown in the figure. The system shown is in equilibrium. All the strings are insulating and massless. The magnitude of charge on one of the capacitor plates is: [Area of plates =A ]
The plates S and T of an uncharged parallel plate capacitor are connected across a battery. The battery is then disconnected and the charged plates are now connected in a system as shown in the figure. The system shown is in equilibrium. All the strings are insulating and massless. The magnitude of charge on one of the capacitor plates is: [Area of plates =A ]
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What is the potential of point a with respect to point b in figure when switch S is open ?
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Plates A and B constitute an isolated, charge parallel-plate capacitor. The inner surfaces (I and IV) of A and B have charges +Q and -Q respectively. A third plate 
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Three identical metal plates with large surface areas are kept parallel to each other as shown in figure. The leftmost plate is given a charge Q, the rightmost a charge -2Q and the middle one remains neutral. Find the charge appearing on the outer surface of the rightmost plate.
Three identical metal plates with large surface areas are kept parallel to each other as shown in figure. The leftmost plate is given a charge Q, the rightmost a charge -2Q and the middle one remains neutral. Find the charge appearing on the outer surface of the rightmost plate.
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Find the potential difference 
between the points a and b shown in each part of the figure.
Find the potential difference between the points a and b shown in each part of the figure.
physics-General
