AIPMT 2008 Main Mock Test

An electric kettle takes $4\text{A}$ current at $220\text{V}$. How much time will it take to boil $1\text{kg}$ of water from temperature $20^{\circ }\text{C}$? The temperature of boiling water is $100^{\circ }\text{C}$.

A current of $3\text{A}$ flows through the $2\Omega$ resistor shown in the circuit. The power dissipated in the $5\Omega$ resistor is:

A particle of mass $m$, charge $Q$ and kinetic energy $T$ enters a transverse uniform magnetic field of induction $\vec{B}$. After $3$ seconds the kinetic energy of the particle will be:

A closed loop $PQRS$ carrying a current is placed in a uniform magnetic field. If the magnetic forces on segments $PS$, $SR$, and $RQ$ are $F_1$, $F_2$, and $F_3$ respectively and are in the plane of the paper and along the directions shown, the force on the segment $QP$ is:

A circular disc of radius $0.2\text{meter}$ is placed in a uniform magnetic field of induction $\frac{1}{\pi }{\text{Wb/m}}^2$ in such a way that its axis makes an angle of $60^{\circ }$ with $\vec{B}$. The magnetic flux linked with the disc is: