Lesson: Electric Fields of Point Charges High School Physics

Physics

In this lesson, we will learn how to relate electric forces to electric fields and describe the electric field lines produced by groups of charges.

Worksheet

Q1:

A charged object produces an electric field strength of magnitude N/C at a distance of 2.6 m from its center. Find the charge of the object. Use N⋅m²/C² for the value of Coulomb’s constant. Answer to two significant figures.

Q2:

An object with a charge of 1.5 C is at a point in an electric field where the field strength is 12 N/C. What is the magnitude of the force on the object?

Q3:

An object has a charge of 0.335 nC. At a point near the object, the strength of the electric field from the object has a magnitude of 5.65 N/C. Find the distance from the object to the point. Use N⋅m²/C² for the value of Coulomb’s constant. Answer to two significant figures.

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