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electric force
a noncontact force
electric charge q
exert force on other charged objects even though they are at some distance away
electric field
The space surrounding a charged body is
electric field
causes any charged particle placed in it to experience an electric force
michael faraday
English scientist who made important discoveries in electricity and magnetism, introduced the use of electric lines of force to map out an electric field.
positively charged particles
negatively charged particles
toward infinity
Lines of force start from ________ and end on ________ or continue ______
intersect
break
Lines of force neither ________ nor ______ as they pass from one charge to another
pass
Lines of force neither intersect nor break as they ____ from one charge to another
neutral point
the point where no lines of force pass
lines of force
The greater the number of______, the stronger the electric field
zero
The electric field is ______ at the neutral point
neutral field
point where the resultant field is subtractive and the electric fields are equal but oppositely directed.
like charges
A neutral point between two _________ is a point between the two charges and nearer the smaller charge.
unlike charges
a neutral point between two ________, lines of force can pass from positive to negative charge.
electric field intensity.
strength of the electric field at a point charge
region of space
An electric field exists in the________ around a charged object or a source charge
experience
When another charged object enters this electric field, it will ________ an electric force.
formula magnitude of electric field
electrostatic potential
elecric potential is also called what
italian physicist Alessandro Volta
volt is named after who
volt V
SI unit pf electric potential
electric potential formula
voltage
potential difference is often referred to as
potential difference
the difference in electric potential between two points in an electric field.
potential difference
It represents how much work is needed to move a charge between those two points.
voltage
a measure of the energy per unit charge required to move a charge from one point to another
volt V
unit of potential difference
capacitor
One important element in an electric circuit
storing charges
A capacitor is a device for _____.
capacitance
the ability of a capacitor to store charges.
area
The bigger the __________ of the plates, the greater the capacitance
the greater the capacitance
The bigger the area of the plates, ___________
