When a positive charge q is placed in the field created by two other charges Q1 and Q2, each a distance r away from q, the acceleration of q is
a. in the direction of the charge Q1 or Q2 of smaller magnitude. b. in the direction of the charge Q1 or Q2 of greater magnitude. c. in the direction of the negative charge if Q1 and Q2 are of opposite sign.
d. in the direction of the positive charge if Q1 and Q2 are of opposite sign.
e. in a direction determined by the vector sum of the electric fields of Q1 and Q2.
Question 2
When gravitational, magnetic and any forces other than static electric forces are not present, electric field lines in the space surrounding a charge distribution show
a. the directions of the forces that exist in space at all times.
b. only the directions in which static charges would accelerate when at points on those lines
c. only the directions in which moving charges would accelerate when at points on those lines.
d. tangents to the directions in which either static or moving charges would accelerate when passing through points on those lines.
e. the paths static or moving charges would take.
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