List of top Questions asked in AP EAPCET- 2022

A body is executing S.H.M. At a displacement \( x \), its potential energy is 9 J and at displacement \( y \), its potential energy is 16 J. The potential energy at displacement \( (x + y) \) is:
A large tank open to the atmosphere at the top and filled with water develops a small hole in the side at a point 20 m below the water level. If the rate of flow of water from the hole is \(3 \times 10^{-3}\,\text{m}^3/\text{min}\), then the area of the hole is: (Take \( g = 10\,\text{m/s}^2 \))
In a U-tube with radii 2 mm and 4 mm, surface tension = 0.03 N/m, density = 1500 kg/m\(^3\), contact angle = 0. Height difference in limbs is:
Time period of a simple pendulum is \( 4 \, \text{s} \) at a place on the earth where the acceleration due to gravity is \( \pi^2 \, \text{m/s}^2 \). Then the length of the pendulum in meters is
An object undergoing SHM takes 0.5 s to travel from one point of zero velocity to the next such point. The angular frequency \( \omega \) is:
A steel wire of length 1.25 m is stretched between two rigid supports. The tension in the wire produces an elastic strain of 0.14%. The fundamental frequency of the wire is (Density and Young's modulus of steel are $7.7 \times 10^3$ kgm$^{-3}$ and $2.2 \times 10^{11}$ Nm$^{-2}$ respectively)
A particle is executing simple harmonic motion with instantaneous displacement: $$ x = A \sin^2\left( \omega t - \frac{\pi}{4} \right) $$ The time period of oscillation of the particle is:
There is a planet which is 8 times massive and 27 times denser than the earth. If \( g' \) and \( g \) are the accelerations due to gravity on the surfaces of the planet and the earth respectively, then
A hydrometer executes SHM when pushed into a liquid of density \( \rho \). If the mass of hydrometer is \( m \) and the radius of the tube is \( r \), then the time period of oscillation is:
Which of the following statements is correct regarding the photoelectric effect?
Two wires A and B of same material having length \(L_A, L_B\) and radii \(R_A, R_B\) and drift velocity \(V_A, V_B\) respectively carries same current. If \(L_A = L_B\) and \(R_A = 2 R_B\) then the value of \(\frac{V_A}{V_B}\) is
A wire of length 2 m, cross-sectional area \( 4\ \text{mm}^2 \), and current 1.6 A has electron drift time \( 40 \times 10^{-3} \ \text{s} \). Find electron number density.
Two cells A and B are connected in the secondary circuit of a potentiometer one at a time and the balancing lengths are respectively 360 cm and 420 cm. If emf of A is 2.4 V, the emf of the second cell B is
The quantities that don’t change when a resistor connected to a battery is heated due to the current are:
A battery with a \(12\,\text{V}\) emf has an initial charge of \(80\,\text{A·h}\). If the potential across the terminals remains constant until it is fully discharged, how long can the battery deliver energy at a rate of \(120\,\text{W}\)?
A coil of inductance \( 0.1 \, \text{H} \) and resistance \( 110 \, \Omega \) is connected to an AC source of \( 110 \, \text{V}, 350 \, \text{Hz} \). What is the phase difference between the voltage maximum and the current maximum?
The current \(i\) in the circuit given below is
current i in the circuit given below is
Electric potential due to a space is given by: \[ \phi(x, y, z) = \phi_0 \cdot \frac{x_0}{x} \] where \( x_0 = 5\,\text{m}, \phi_0 = 8\,\text{V} \). Find the electric field at the point (10 m, 5 m, 5 m).
A 100 \(\mu F\) capacitor is connected to a 100 V, 50 Hz AC supply. The rms value of the current is
Find the current \( i \) in the given circuit.
Find the current i in the given circuit.
Capacitive reactance is 3 k\(\Omega\). If connected to a source of double frequency, what is new reactance?
A 8 $\Omega$ resistor is connected to a battery that has an internal resistance of 0.2 $\Omega$. If the voltage across the battery (the terminal voltage) is 10 V, then the emf of the battery is

In the given circuit, the values of $ I_1, I_2, I_3 $ are respectively:

The resistance of a wire at $ 0^\circ \text{C} $ is $ 20\, \Omega $. If the temperature coefficient of resistance is $ 5 \times 10^{-3}\, ^\circ \text{C}^{-1} $, at what temperature will the resistance double?
Current density in a cylindrical wire of radius \( R \) varies with radial distance as \( \beta (r + r^2) \). What is the current through the shaded section (sector angle \( \pi/6 \)) of the wire as shown in the figure?
Current density in a cylindrical wire of radius R