The work done in moving a unit positive charge from one point to another in an electric circuit is measured by the potential difference between those points. This quantity represents the energy required to move the charge and is a ...
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The law describing the force between two stationary charges, stating it is directly proportional to the product of their charges and inversely proportional to the square of the distance between them, is known as Coulomb’s law. This fundamental principle in ...
The charging of objects occurs as a result of the transfer of electrons. Electrons are negatively charged particles that can move from one object to another, leading to the build-up of static electricity. Protons and neutrons, which reside in the ...
When an ebonite rod is rubbed with the skin of a cat, the ebonite rod becomes negatively charged. This happens because the rod gains electrons from the cat’s skin, resulting in an excess of electrons on the rod, which gives ...
Similar charges have repulsion. This is due to the fundamental principle in electrostatics that like charges repel each other. Positive charges repel other positive charges, and negative charges repel other negative charges. This repulsive force can be observed in various ...
If the distance between two electric charges is halved, the value of the electric force between them will become quadruple. This is because the force between two charges increases as the distance between them decreases. Halving the distance results in ...
The force between two electric charges is related to Coulomb’s law. This law describes how the electric force between two charged objects depends on the amount of charge on each object and the distance between them. Coulomb’s law is fundamental ...
The entire charge of a charged conductor remains on its outer surface. This occurs because like charges repel each other and move as far apart as possible, resulting in the charges spreading out evenly on the outer surface of the ...
When a glass rod is rubbed with silk, the rod becomes positively charged. This occurs because electrons are transferred from the glass rod to the silk, leaving the rod with a deficiency of electrons and thus a positive charge.
Light travels slower in glass than in air because the refractive index of air is less than the refractive index of glass. The higher refractive index of glass indicates that light interacts more with the glass material, causing it to ...