Electricity and Magnetism Answers

You measure an electric field of 2.52×106 N/C at a distance of 1.196 m from a point charge. What is the magnitude of the charge?

The electric field is measured to be 22.7 N/C due to a point charge of 6.1 nC. How far away was the electric field measured?

What is the size of the force on an electron when the electron is in a uniform electric field that has an intensity of 8.7 x 10 7 N/C

A charge experiences a force of 1.5 x 10 -6 N in a uniform electric field of intensity 8.8 N/C. What is the charge?

An electron experiences a force of 8.7 x 10 -12 N. What is the intensity of the electric field?

A positive charge of 2.8 mC experiences a 4.8 x 10 -2 N force when placed in a uniform electric field. What is the magnitude of the electric field?

A positive charge of 6.6 µC and a negative charge of 4.0 µC exert a force of -25.0 N on each other. How far apart are the charges?

Two electrons are separated by a distance of 1.60 m. What is the magnitude of the electric force between them?

A copper bar is cut in half and a rubber plug is placed between the two pieces. A negatively charged rod is touched at Point A. Small pieces of paper are placed at Points B, C, D and E. Which of the following is most likely to happen? The small pieces of paper will stick at ______________.




Select one:
a. B only
b. B, C, and E
c. B, C, D, and E Incorrect
d. C only

If Object A is attracted by and sticks to a negatively charged rod, we can be sure that

Object A _____________
Select one:
a. must be neutral
b. must be positively charged Incorrect
c. could be either neutral or positively charged
d. must be negatively charged