Electric Fields

The video tutorial explains electric fields, focusing on the behavior of positive and negative test charges. It covers the mapping of electric fields around point charges and compares electric fields to gravitational fields. The tutorial concludes with a discussion on electric field lines, their properties, and how they represent field strength and direction.

What is the unit of an electric field?

• Coulombs per Newton

• Newtons per Coulomb

• Joules per Coulomb

• Coulombs per Joule

Why do electric field and electrostatic force vectors align for a positive charge?

• Because they are both positive

• Because they are both negative

• Because they are both vectors

• Because they are both scalars

How does a negative charge affect the direction of the force in an electric field?

• It doubles the force

• It does not affect the direction

• It makes the force and field direction the same

• It reverses the direction of the force

What happens to the electric field around a positive point charge as distance increases?

• It increases in magnitude

• It remains constant

• It changes direction

• It decreases in magnitude

How do electric field lines behave around a negative point charge?

• They form circles

• They point radially inward

• They do not exist

• They point radially outward

What is a similarity between electric fields and gravitational fields?

• Both are measured in Newtons

• Both are vector fields

• Both are scalar fields

• Both are measured in Coulombs

What does a higher density of electric field lines indicate?

• Lower electric field strength

• Higher electric field strength

• Constant electric field strength

• No electric field strength