4.3 Uniform Electric Field

Question 1

How are electric field lines set out in a uniform field.

Answer 1

Perpendicular to charged objects, yet parallel to each other. Equally spaced out.

Question 2

What does it mean if lines are constantly equally spaced out in an electric field?

Answer 2

The electric field strength doesn’t change.

Question 3

How can the size of the uniform electric field be calculated?

Answer 3

Using equation E = V/d

where v = voltage(work done per charge between plates) and d = distance(plate seperation)

Question 4

How to demonstrate that the electric field strength in a uniform field stays constant?

Answer 4

Place a charged object in between 2 charged plates and measure voltage as it gets closer to the plate it is attracted to. Plot distance against voltage to find that there is a direct proportion , keeping gradient (E) constant.

Question 5

Except NC^-1 what is another unit of electric field strength?

Answer 5

Vm^-1