Electric Fields
About the Lecture
The lecture Electric Fields by Jared Rovny, PhD is from the course Electrostatics.
Included Quiz Questions
How is the direction of an electric field line determined at a particular point?
- It is the same as the direction of the force exerted on a positive charge by the electric field.
- It is the same as the direction of the force exerted on a negative charge by the electric field.
- It is perpendicular to the direction of the force exerted on a positive charge by the electric field.
- It is perpendicular to the direction of the force exerted on a negative charge by the electric field.
- It depends on the configuration of the charges that produced the electric field.
What is the magnitude and direction of an electric field produced by a charge q?
- |E| = k|q|/r² , radially outward for q > 0 and radially inward for q < 0
- |E| = k|q|/r² , radially outward for q < 0 and radially inward for q > 0
- |E| = k|q|/r , radially outward for q > 0 and radially inward for q < 0
- |E| = k|q|/r , radially outward for q < 0 and radially inward for q > 0
- |E| = kq²/r² , radially outward for q > 0 and radially inward for q < 0
Which equation describes the force on a charge q₁ placed in an electric field E?
- F = q₁E
- F = E/q₁
- F = q₁q₂/r²
- F = q₁/r²
- F = kq₁q₂/E
Which of the following is TRUE about the electric field lines created by a positive and negative charge close to each other?
- The lines point from the positive to the negative charge.
- The lines point from the negative to the positive charge.
- The lines cross midway between the charges.
- The lines point directly away from both charges.
- The lines point directly towards both charges.
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Author of lecture Electric Fields
Jared Rovny, PhD
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how the idea is introduced and how it flow easily , i would like more examples solved by him for generally each rule
