EAPCET - Physics Mock Tests

A stone tied to a string of length L is whirled in a vertical circle. The minimum velocity at the lowest point to complete the circle is:

A cube has 12 edges, each containing a resistor of resistance R. The equivalent resistance between two diagonally opposite vertices of the cube (e.g., from corner (0,0,0) to corner (1,1,1)) is:

The magnetic field at the centre of a circular coil of radius R carrying current I is B. If the same wire is rewound into a coil of radius R/2 with the same number of turns and the same current, the new magnetic field at the centre will be:

A gas at pressure P and volume V is compressed adiabatically to V/2. If γ = 1.5, the final pressure is:

A charged particle moves into a region of uniform magnetic field perpendicular to its velocity. The kinetic energy of the particle:

Two identical capacitors each of capacitance C are connected first in series and then in parallel. The ratio of equivalent capacitance in series to that in parallel is:

A satellite of mass m orbits Earth in a circular orbit of radius r. If the Earth radius is R and gravitational acceleration at Earth surface is g, the orbital speed of the satellite is:

A capacitor of capacitance C is charged to a potential V. It is then disconnected from the battery and connected across an uncharged capacitor of capacitance 2C. The final potential difference across the combination is: