PHYSICAL QUANTITY

Electric charge: formulas and units of measurement

Electric charge: symbol q, Q, unit Cl. Formulas and explanations for Electricity.

q, Qpendant

KEY CONNECTIONS

Formulas

q = It

F = k|q₁q₂| / (εr²)

E = F / q

E = k|q| / (εr²)

φ = kq / (εr)

U = A / q

m = kelq

W = kq₁q₂ / (εr)

NOTATION

: Electric charge is a quantity that determines the participation of a body in electrical interaction.
: Current strength is the charge passing through the cross section of a conductor per unit time.
: Time is a quantity characterizing the duration and sequence of events.
: Force is a measure of the interaction of bodies that changes their movement or shape.
: The Coulomb coefficient is the coefficient of electrical interaction of charges in a vacuum.
: The first charge is the electric charge of the first body under consideration.
: The second charge is the electric charge of the second body in question.
: Dielectric constant is a characteristic of the influence of the medium on the electric field.
: The distance between charges is the length of the segment between the charges under consideration.
: Electric field strength is the strength characteristic of the electric field.
: Potential is the energy characteristic of the electric field at a selected point.
: Electric voltage is the work done by the electric field when transferring a unit charge.
: Work is a measure of energy transferred when a force is applied.
: Mass is a scalar physical quantity that is a measure of the inertia of a body.
: Electrochemical equivalent is the mass of a substance released by a unit charge.
: Energy is a measure of a system's ability to do work.

THEORY

PRACTICE

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