Home Physics Electric Charges and Field

Electric Charges and Field

Electric Charges; Conservation of charge, Coulomb's law-force between two point charges, forces between multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric fleld. Electric flux, statement of Gauss's theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside).

Applications of Gauss's Law

Applications of Gauss’s Law

Applications of Gauss’s Law Field due to an infinitely long straight uniformly charged wire Field due to uniformly charged infinite plane sheet Field due...
Gauss’s Law

Gauss’s Law

The surface integral of electrostatic field E produced by any source over any closed surface S enclosing a volume V in vacuum i.e. total electric flux over...
Electric Dipole

Electric Dipole

An electric dipole is a pair of equal and opposite charges q and –q separated by some distance 2a. Its dipole moment vector p...
Electric Flux

Electric Flux

Consider a plane surface of area ΔS in a uniform electric field E in the space. Draw a positive normal to the surface and...
Electric Field Lines

Electric Field Lines

For a single positive point charge q, electric field is Since electric field varies as the inverse of the square of the distance that...
Electric Field

Electric Field

Electric Field An electric field is said to exist at a point if a force of electrical origin is exerted on a stationary charged body...
Forces between Multiple Charges

Forces between Multiple Charges

According to the parallelogram law of addition. Experimentally it is verified that force on any charge due to a number of other charges is...
Coulomb’s Law

Coulomb’s Law

Coulomb’s law is a quantitative statement about the force between two point charges. When the linear size of charged bodies are much smaller than the...
Electric Charge

Electric Charge

Electric charge is the property responsible for electric forces which act between nucleus and electron to bind the atom together. Electric charge is a...

Conductors and Insulators

Conductors: The substances through which electric charges can flow easily are called conductors. Some substances readily allow passage of electricity through them, others do not. Those...