List of top Physics Questions

Introduction of a slab of which of the following will decrease the capacitance of a capacitor ?
The torque and magnetic potential energy of a magnetic dipole in most stable position in a uniform magnetic field $\left(\vec{B}\right)$ having magnetic moment $\left(\vec{m}\right)$ will be
The work done to move a unit charge along an equipotential surface from $P$ to $Q$
There is a uniform electric field of strength $10^3 V/m$ along y-axis; A body of mass 1 g and change $10^6$ C is projected into the field from origin along the positive x-axis with a velocity 10 m/s. Its speed in m/s after 10s is .(neglect gravitation)
Two charges of $2\mu C$ and $5\,\mu C$ are placed 2.5 cm apart. The ratio of the Coulombs force experienced by them is
Two tiny spheres carrying charges $1.8 \, \mu C$ and $2.8 \, \mu C$ are located at $40\, cm$ apart. The potential at the mid-point of the line joining the two charges is
Van de Graaff generator is used to
What happens when charge is placed on a soap bubble ?
What is the angle between electric field and equipotential surface?
What is the area of the plates of a 3F parallel plate capacitor, if the separation between the plates is 5 mm ?
Which among the following is an example of polar molecule?
Which of the following statements is true about the relation between electric field and potential?
Which of the following statements is/are true about the principle of Van de Graaff generator?
The potential due to dipole at a point is proportional to:
The charge deposited on $4\, \mu F$ capacitor in the circuit is
There is $10$ units of charge at the centre of circle of radius $1\, m$. The work done in moving $1$ unit of charge once around the circle is :
The force of interaction between two charges $q_{1}=6\, \mu C$ and $q_{2}=2\, \mu C$ is $12\, N$. If charge $q=-2\, \mu C$ is added to each of the charges, then the new force of interaction is
A charge of $10^{-9} C$ is placed on each of the $64$ identical drops of radius $2\, cm$. They are then combined to form a bigger drop. Its potential will be
An electric dipole has the magnitude of its charge as $q$ and its dipole moment is $p$. It is placed in a uniform electric field $E$. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively
Each capacitor shown in figure is $ 2\mu F $ . Then the equivalent capacitance between A and B is
Two plates of a parallel plate capacitor of capacity $ 50\mu F $ are charged by a battery to a potential of 100 V. The battery remains connected and the plates are separated from each other so that the distance between them is doubled. The energy spent by the battery in doing so, will be
A bullet of mass $2g$ is having a charge of $ 2\mu C $ . Through what potential difference must it be accelerated, starting from rest, to acquire a speed of $10 \,m/s$?
The electrostatic potential of a uniformly charged thin spherical shell of charge $Q$ and radius $R$ at a distance $r$ from the centre is
A capacitor is connected to .a cell of emf E having someJntemal resistance r. The potential difference across the:
A capacitor having capacity of $2.0 \,\mu$ F is charged to $200 \,V$ and then the plates of the capacitor are connected to a resistance wire. The heat produced in joule will be