PRELIMS - LESSON 3 Flashcards
(14 cards)
are forces that act between objects even if
they are not in contact.
Field forces
what re the two types of field forces
- Electrostatic (Coulombic) force
- Gravitational force
is defined as the amount of electric force on
a charged body exerted by external charged bodies.
Electric field
Electric field is a way on how charges ________ to one
another.
communicate
electric field is defined as
the force per unit charge at a given point.
an English scientist,
introduced the
concepts of fields and
lines of force which
paved the way to
several important
discoveries in physics.
Michael Faraday
Results of Michael
Faraday’s experiments
revealed that the
direction of the force
in a given electric field
may be represented
as _________going in
and coming out of
negative and positive
charges, respectively.
field lines
The summation of these field lines is what is termed as
electric flux.
It refers to the “rate of the flow of the electric field,” as
determined by the number of electric field or flux lines
passing through a given region.
Electric Flux
Electric flux is the property of an ________ relating to
the measure of its strength.
electric field
Electric field lines always emerge from a _____ charge
and end at a _____ charge.
positive
negative
A _________ within a region will have an outward electric flux passing through its surface.
positive charge
A __________ will have an inward electric flux through its surface.
negative charge
A region containing a ________ has “no net electric flux” passing outward or inward.
zero charge
