If Q = net charge, t = time, then which of the following equations is correct?

The correct answer is I =\(Q \over t\)

Key Points

• Current, charge and time
  • How much electric charge is transferred each second defines electrical current, giving the following relationship:
    Current= charge/ time
    Rearranging this we get,
    charge= current * time
  • The symbol for charge is Q, it is measured in coulombs (C).
  • The symbol for current is I, it is measured in amperes (A).
  • The symbol for time is t, it is measured in seconds (t).
  • This gives the relation:
    Q= I* t

Additional Information

• Current
  • A stream of charged particles, like electrons or ions, moving through an electrical conductor or space is called an electric current.
  • The net rate of electric charge flow through a surface or into a control volume is how it is measured.
  • Depending on the conductor, the moving particles are referred to as charge carriers, which can be any one of a number of different types of particles.
• Charge
  • A charge in physics can be any of a number of different quantities, such as the color charge in quantum chromodynamics or the electric charge in electromagnetism.
  • The time-invariant generators of a symmetry group, and more specifically, the generators that commute with the Hamiltonian, are represented by charges.
  • The charge invariance corresponds to the vanishing commutator [Q,H]=0, where H is the Hamiltonian because charges are frequently denoted by the letter Q.
  • As a result, charges and conserved quantum numbers are linked; these are the eigenvalues q of the generator Q.
• Time
  • From the past through the present and into the future, time is the ongoing sequence of existence and events that appears to be irreversible.
  • It is a component quantity of various measurements used to order events, compare their durations or intervals, and quantify rates of change of quantities in material reality or conscious experience.
  • Along with the three spatial dimensions, time is frequently referred to as a fourth dimension.