Module 4 Flashcards
It is defined as the area where electrical force can be experienced.
Electric Field
A charged body creates an ____________ in the space around it.
Electrical Field
A charged particle can _______ the properties of space around them.
modify
It is defined as the force per unit charge experienced by a stationary point charge in a given location in a field.
Electric Field
What is the formula for Electric Field?
E = F/q = kq/r^2
The electric field points _______ form a positive charge.
away (positive = away)
The electric field points _______ form a negative charge.
toward (negative = toward)
The electric field strength/magnitude _____ with distance.
decreases (magnitude is inversely proportional to distance)
First introduced the concept of field lines.
Michael Faraday
It is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point.
Electric Field Line
The combination of two equal charges with opposite signs.
Electric DipoleT
These are curved and are directed from the positive charge to the negative charge.
Electric Field Lines
The direction of the electric field at any point is ______ to the field of line at any point.
tangent
These indicates the direction of the electric field; the field points in the direction tangent to the field line at any point.
Electric Field Lines
The lines are drawn so that the magnitude of the electric field (E) is ___________ to the number of lines crossing unit area perpendicular to the lines.
proportional
The closer together the lines, the ________ the field.
stronger (closer = stronger)
Electric field lines start on _________ charges.
positive (positive = start)
Electric field lines end on _________ charges.
negative (negative = end)
In electric field lines, the number of starting (leaving positive) or ending (entering negative) charges is proportional to the ___________ of the charge.
magnitude
An electron moves in a _________ electric field.
uniform
A positive charge goes ____________ an electric field.
along (positive = along)
A negative charge goes ____________ an electric field.
against (negative = against)
If a charge is positive, the force on the test charge is directed _________ from the charge.
away (positive = away)
If a charge is negative, the force on the test charge is directed _________ from the charge.
toward (negative = toward)
If a charge is positive, the electric field points radially ________ from the charge.
outward (positive = outward)
If a charge is negative, the electric field points radially ________ from the charge.
inward (negative = inward)
Formula for Electric Field of a Point Charge:
E = k|q|/r^2
