PHLB09H3 Lecture Notes - Lecture 8: Seat Belt, Blood Transfusion

a. Compare the magnitudes of the two charges 

|Q1|>|Q2|

|Q1|=|Q2|

|Q1|<|Q2|

There is not enough information to determine the relative magnitudes of the charges.

b. What do we know about the signs of the charges from looking at the picture?

Q1 and Q2 have the same sign 

Q1 and Q2 have opposite signs

There is not enough information in the picture to determine the relative signs of the charges.

c. Compare the magnitudes of the electric fields at points A and B. 

|EA| > |EB| 

|EA| = |EB|

|EA|< |EB|

There is not enough information in the picture to determine the relative signs of the charges.

Electric field lines provide information about

At which point is the electric field stronger?

A. Point A

B. Point B

C. Not enough information to tell