1. What relative orientation must 2 vectors A and B have so that the dot-product
ID: 2286702 • Letter: 1
Question
1. What relative orientation must 2 vectors A and B have so that the dot-product is maximum?
a. The vectors must point in the same direction
b. the vectors must point in the opposite directions
c. the vectors must be perpendicular
d. the angle between the vectors must be 45 degrees
e. the angle between the vectors does not affect the value of the dot product
2. A point charge with charge Q is fixed at the origin. The electric protential at a point distance d along the x-axis is V. What is the electric potential at a point a distance 2d along the x-axis?
a. V b. 2V c. 4V d. V/2 e. V/4
Explanation / Answer
1.a. The vectors must point in the same direction
2.c. 4V
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