Electric fields Flashcards
A charged object has…
imbalance in positive and negative charges.
Static electricity is created by…
friction, the electrons are transferred from one object to another.
Electric charge is a feature of…
certain elementary particles, that causes them to interact with each other.
Unit of charge is…
coulomb (C)
One C is equivalent…
to the charge transported by 1 ampere of current in 1 second.
An electric field is…
a region where a charged particle will experience a force.
Electric field lines represent:
- the direction of the field(direction in which a positive particle would move)
- the space between lines represents the strength
Two parallel plates=
uniform electric filed
In the uniform field the force…
is everywhere the same.
In radial uniform filed the force…
is not the same everywhere.
The electric field strength at a point…
is the force experienced per unit charge exerted on a stationary positive charge at that
Electric field strength =
F/charge (NC-1) or p.d./separation (Vm-1)
Acceleration of particle=
F x electric fore / mass
