Test Yourself - Static Electricity and Electric Fields

1.

The figure above shows the distribution of electrical charge at the ground and in the bottom portion of a thunderstorm. Would the electric field arrow at Point A point  UPWARD  or  DOWNWARD?

2.

What would produce this pattern of electric field arrows?  Would a negative charge placed somewhere in the pattern move  INWARD toward  or  OUTWARD away from  the center of the pattern?

3.

Would a positive charge placed at POINT A (midway between two + charges) or POINT B (midway between a + and a - charge) experience zero force?

Click here for the answers to these three questions.