List of top Questions asked in AP EAPCET- 2023

An infinite line charge produces a field of \(9 \times 10^4 \, \text{NC}^{-1}\) at a distance of 2 cm. The linear charge density is
Two electric dipoles, each of dipole moment ‘P’, are placed at points A (\(a,0\)) and B (\(-a,0\)) as shown in the figure. The work done in rotating both the dipoles through 90° in clockwise direction is (E = Electric field)
Two electric dipoles, each of dipole moment ‘P
Inside a charged hollow sphere, at any point the electric field \( E \) and potential \( V \) are:
A conducting sphere of radius 5 cm has an unknown charge. The electric field at 10 cm from the center of the sphere is $1.8 \times 10^3$ N/C. The net charge on the sphere is

Two equipotential surfaces A and B are separated by a distance x. The work done in moving a charge -q from A to B is (Assume $\varepsilon_0$ = permittivity of free space)

Potential \( V = \frac{1}{2}(y^2 - 4x) \). Electric field at \( x = 1 \, \text{m}, y = 1 \, \text{m} \) is:
The given circuit shows two capacitors connected to a battery. After the capacitors are completely charged, the battery is removed and the capacitors are connected with plates of opposite polarity together. Then the energy lost in the process is:
two capacitors connected to a battery

Two thin conducting concentric shells of radii \( R_1 \) and \( R_2 \) are shown in the figure. The inner shell carries a charge \( +Q \) and the outer shell is neutral. Then the correct statement is:

Three charges \(+Q\), \(q\), \(+Q\) are placed respectively, at distances \(0\), \(\frac{d}{2}\), and \(d\) from the origin on the x-axis. If the net force experienced by \(+Q\) placed at \(x = 0\) is zero, then the value of \(q\) is
A conducting sphere of radius \(R\) carrying a charge \(Q\) lies concentrically inside an uncharged conducting shell of radius \(2R\). If they are joined by a metal wire, then the charge flowing to the shell and the amount of heat produced are respectively:
Three point charges 1 C, 2 C and 3 C are plad at the corners of an equilateral triangle of side one metre. The work done to move these charges to the corners of another equilateral triangle of side 0.5 m is
An uncharged parallel plate capacitor with dielectric constant \(K\) is connected to a similar air-cored capacitor which is charged to a potential \(V_0\). If the common potential is \(V\), then the value of \(K\) is
In a region, the intensity of an electric field is given by \( \vec{E} = (2\hat{i} + 3\hat{j} + \hat{k}) \) NC\(^{-1} \). The electric flux through a surface of area \( 10 \hat{i} \) m\(^2 \) in the region is
Electron of charge \( e \) moves in hydrogen atom (radius \( r \)). Coulomb force between nucleus and electron is:
(Here \( K = \frac{1}{4 \pi \varepsilon_0} \))
A particle of charge \( q \) is shot with speed \( V \) towards another fixed particle of charge \( Q \). It reaches the closest distance \( r \) and then returns. If \( q \) were shot with speed \( 2V \), then the closest distance of approach of \( Q \) is:
Two charges \( Q \) and \( 4Q \) are separated by a distance of 6 cm. The distance of the point from \( 4Q \) at which the net electric field is zero is:
The equivalent capacitance between A and B in the given figure is:
equivalent capacitance between A and B
Flux coming out from a unit positive charge kept in air is

The figure shows a part of a circuit. The voltage across A and B is 4V. Then the voltages across 2 $\mu$F and 1.5 $\mu$F are respectively

A heat energy of 150 cal is supplied to a gas and an external work of 130 J is done on the gas, the change in internal energy is nearly
To heat the food containing water, the frequency of the microwaves used in microwave oven is:
A monatomic gas of volume \( V \) and pressure \( P \) expands isothermally to a volume \( 27V \) and then compressed adiabatically to a volume \( V \). The final pressure of the gas is:
The specific heat capacity of a monatomic gas at constant volume is \( x % \) of its specific heat capacity at constant pressure. Then \( x \) =
A mixture of gasses consists of 16 g of Helium and 16 g of Oxygen. The ratio of specific heats of the mixture is nearly
During an adiabatic process of a monatomic gas, the relation between absolute temperature (\( T \)) and pressure (\( P \)) is \( P \propto T^X \). The value of \( X \) is