Physics-
General
Easy
Question
A frictionless dielectric plate 
is kept on a frictionless table 
. A charged parallel plate capacitance 
(of which the plates are frictionless) is kept near it. The plate is between the plates. When the plate is left between the plates
- It will remain stationary on the table
- It is pulled by the capacitor and will pass on the other end
- It is pulled between the plates and will remain there
- All the above statements are false
The correct answer is: It is pulled between the plates and will remain there
The energy will be minimum in this case and every system tends to possess minimum energy.
Related Questions to study
Physics-
As shown in the figure, a very thin sheet of aluminium is placed in between the plates of the condenser. Then the capacity
As shown in the figure, a very thin sheet of aluminium is placed in between the plates of the condenser. Then the capacity
Physics-General
Physics-
Force of attraction between the plates of a parallel plate capacitor is
Force of attraction between the plates of a parallel plate capacitor is
Physics-General
Physics-
A parallel plate condenser is connected with the terminals of a battery. The distance between the plates is
. If a glass plate (dielectric constant
) of 
is introduced between them, then the capacity will become
A parallel plate condenser is connected with the terminals of a battery. The distance between the plates is. If a glass plate (dielectric constant) of is introduced between them, then the capacity will become
Physics-General
Physics-
drops each having the capacity and potential 
are combined to form a big drop. If the charge on the small drop is
, then the charge on the big drop will be
drops each having the capacity and potential are combined to form a big drop. If the charge on the small drop is, then the charge on the big drop will be
Physics-General
Physics-
Separation between the plates of a parallel plate capacitor is 
and the area of each plate is 
. When a slab of material of dielectric constant
and thickness 
is introduced between the plates, its capacitance becomes
Separation between the plates of a parallel plate capacitor is and the area of each plate is . When a slab of material of dielectric constantand thickness is introduced between the plates, its capacitance becomes
Physics-General
Physics-
The energy of a charged capacitor is given by the expression ( = charge on the conductor and C = its capacity)
The energy of a charged capacitor is given by the expression ( = charge on the conductor and C = its capacity)
Physics-General
Physics-
The electric flux for Gaussian surface A that enclose the charged particles in free space is (given q1 = –14 nC, q2 = 78.85 nC, q3 = – 56 nC)
The electric flux for Gaussian surface A that enclose the charged particles in free space is (given q1 = –14 nC, q2 = 78.85 nC, q3 = – 56 nC)
Physics-General
Physics-
Consider the charge configuration and spherical Gaussian surface as shown in the figure. When calculating the flux of the electric field over the spherical surface the electric field will be due to
Consider the charge configuration and spherical Gaussian surface as shown in the figure. When calculating the flux of the electric field over the spherical surface the electric field will be due to
Physics-General
Physics-
Shown below is a distribution of charges. The flux of electric field due to these charges through the surface S is
Shown below is a distribution of charges. The flux of electric field due to these charges through the surface S is
Physics-General
Physics-
and 
are point charges located at points as shown in the figure and is a spherical Gaussian surface of radius R. Which of the following is true according to the Gauss’s law
and are point charges located at points as shown in the figure and is a spherical Gaussian surface of radius R. Which of the following is true according to the Gauss’s law
Physics-General
Physics-
Electric charge is uniformly distributed along a long straight wire of radius 1mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50 cm and length 1m symmetrically encloses the wire as shown in the figure. The total electric flux passing through the cylindrical surface is
Electric charge is uniformly distributed along a long straight wire of radius 1mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50 cm and length 1m symmetrically encloses the wire as shown in the figure. The total electric flux passing through the cylindrical surface is
Physics-General
Physics-
On a planet a freely falling body takes 2 sec when it is dropped from a height of 8 m, the time period of simple pendulum of length 1 m on that planet is
On a planet a freely falling body takes 2 sec when it is dropped from a height of 8 m, the time period of simple pendulum of length 1 m on that planet is
Physics-General
Maths-
The equation of the tangent to curve 
at the point where it crosses 
‐axis is
The equation of the tangent to curve at the point where it crosses ‐axis is
Maths-General
Maths-
If the curve 
and 
intersect at angle cx, find the value of 
If the curve and intersect at angle cx, find the value of
Maths-General
Maths-
The abscissae of the points, where the tangent to curve 
is parallel to 
‐axis, are
The abscissae of the points, where the tangent to curve is parallel to ‐axis, are
Maths-General
