Electric Fields Quiz

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6 Questions

What is the formula to calculate the electric field intensity?

E = k * (Q / r^2)

In which direction does an electric field point around a positive point charge?

Away from the charge

What happens to the electric field between two parallel plates when the distance between the plates increases?

The electric field weakens

What is the SI unit of electric field strength?

Newton per Coulomb

What happens to the electric field strength when the distance from a point charge is doubled?

It becomes one-fourth

In which direction does the electric field point around a negative point charge?

Away from the charge

Study Notes

Electric Field Intensity

  • The formula to calculate the electric field intensity is not provided, but it is commonly denoted as E and measured in units of Newtons per Coulomb (N/C).

Electric Field Direction

  • Around a positive point charge, the electric field points radially outward from the charge.
  • Around a negative point charge, the electric field points radially inward towards the charge.

Electric Field Between Parallel Plates

  • When the distance between two parallel plates increases, the electric field between the plates decreases.

Electric Field Strength

  • The SI unit of electric field strength is Newtons per Coulomb (N/C).
  • When the distance from a point charge is doubled, the electric field strength decreases by a factor of four (1/4).

Test your knowledge of electric fields with this quiz. Explore the formula for calculating electric field intensity, the direction of an electric field around a positive point charge, and the effects of increasing distance between parallel plates on the electric field.

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