Physics-
General
Easy
Question
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 ):
The correct answer is:
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.
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 :
physics-General
physics-
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
physics-
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
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
physics-General
physics-
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 :
physics-General
physics-
In the circuit shown, each capacitor has a capacitance C. The emf of the cell is E. If the switch S is closed
In the circuit shown, each capacitor has a capacitance C. The emf of the cell is E. If the switch S is closed
physics-General
physics-
Find the equivalent capacitance across A & B
Find the equivalent capacitance across A & B
physics-General
physics-
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.
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.
physics-General
physics-
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 :
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 :
physics-General
physics-
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 ]
physics-General
physics-
What is the potential of point a with respect to point b in figure when switch S is open ?
What is the potential of point a with respect to point b in figure when switch S is open ?
physics-General
physics-
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 
with charge +Q is now introduced midway between A and B. Which of the following statements is not correct?
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 with charge +Q is now introduced midway between A and B. Which of the following statements is not correct?
physics-General
physics-
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.
physics-General
physics-
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
physics-
Four identical plates 1,2,3 and 4 are placed parallel to each other at equal distance as shown in the figure. Plates 1 and 4 are joined together and the space between 2 and 3 is filled with a dielectric of dielectric constant k=2. The capacitance of the system between 1 and 3&2 and 4 are and respectively. The ratio 
is :
Four identical plates 1,2,3 and 4 are placed parallel to each other at equal distance as shown in the figure. Plates 1 and 4 are joined together and the space between 2 and 3 is filled with a dielectric of dielectric constant k=2. The capacitance of the system between 1 and 3&2 and 4 are and respectively. The ratio is :
physics-General
physics-
A parallel plate capacitor has two layers of dielectric as shown in figure. This capacitor is connected across a battery. The graph which shows the variation of electric field (E) and distance (x) from left plate.
A parallel plate capacitor has two layers of dielectric as shown in figure. This capacitor is connected across a battery. The graph which shows the variation of electric field (E) and distance (x) from left plate.
physics-General
