Yes, we can have a neagtive emf. The negative sign implies that the electromotive force induced will be induced in order to oppose the cause.... View Article
Energy in a coil is stored in the form of magnetic energy. Assuming we have an electrical circuit containing a power source and a solenoid of... View Article
The moelcules at higher temperature have more energy and vibrate faster allowing sound waves to travel more quickly. The speed of sound at room... View Article
The centre of mass of a uniform rod is at the centre of the rod. Even the centre of gravity of a uniform rod also lies at the centre of the rod.... View Article
Freezing point depression refers to the lowering of the freezing point of solvents upon the addition of solutes. The depression in the freezing... View Article
Gibbs free energy is the energy associated with the chemical reaction that can do useful work. The Gibbs free energy equals the enthalpy minus... View Article
Electric susceptibility is the quantitative measure of the extent to which an electric field applied to a dielectric material causes polarization.... View Article
Equations of motion, in physics, are defined as equations that describe the behaviour of a physical system in terms of its motion as a function... View Article
The spacing between two bright fringes in the interference pattern produced by two-slit is given by the following formula: In the above... View Article
A wave is periodic disturbance in the medium through which it propagates. A water wave creates a periodic disturbance in water, similarly A... View Article
Absolute potential energy is defined as the amount of work that needs to be done to bring an object to its current location from a point of... View Article
Internal energy is the kinetic and potential energy associated with the random motion of the molecules of an object. Free energy is the energy... View Article
A dielectric gets polarized when it is placed in an electric field. The field produced due to the polarization minimizes the effect of external... View Article
The electrons in the silicon atoms are more tightly bound to the nucleus than the electrons of the germanium atom due to its small size. This is... View Article
The acceleration due to gravity is 9.81 m/s2 on the surface of Earth, because of the size of Earth and the distance of the surface from its... View Article
The ideal gas law is both direct and inverse because The volume of a gas is inversely proportional to its pressure and directly proportional to... View Article
