Coulomb's Law (Electric Force) Video Lessons

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Problem: Two tiny beads are 25 cm apart with no other charges or fields present. Bead A carries 10 μC of charge and bead B carries 1 μC. Which one of the following statements is true about the magnitudes of the electric forces on these beads? A) The force on A is 10 times the force on B. B) The force on B is 10 times the force on A. C) The force on A is exactly equal to the force on B. D) The force on A is 100 times the force on B. E) The force on B is 100 times the force on A.

FREE Expert Solution

We'll use newton's third law to solve this problem:

Action and Reaction are equal but directed opposite to each other.

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Problem Details

Two tiny beads are 25 cm apart with no other charges or fields present. Bead A carries 10 μC of charge and bead B carries 1 μC. Which one of the following statements is true about the magnitudes of the electric forces on these beads? 


A) The force on A is 10 times the force on B. 

B) The force on B is 10 times the force on A. 

C) The force on A is exactly equal to the force on B. 

D) The force on A is 100 times the force on B. 

E) The force on B is 100 times the force on A.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Coulomb's Law (Electric Force) concept. You can view video lessons to learn Coulomb's Law (Electric Force). Or if you need more Coulomb's Law (Electric Force) practice, you can also practice Coulomb's Law (Electric Force) practice problems.