Electric fields Flashcards
1
Q
Direction of electric field lines
A
Positive to negative
2
Q
Two units of Electric Field Strength
A
N/C or V/m
3
Q
Define Electric Field strength
A
Force per unit positive charge
4
Q
Similarities between gravitational and electric fields
A
The force is inversely proportional to the square of the distances between the masses/charges.
A point mass/charge creates a radial electric field.
5
Q
Differences between gravitational and electric fields
A
Gravitational always attractive; Electric either attractive or repulsive.
Objects can be shielded from electric fields but not from gravitational fields.
