Physics 12 - Quiz 1


Electric Fields and Forces

Electric charges are arranged as shown in the diagram below.  

 

a) What is the electric field (magnitude and direction) at point P midway between the charges? (4 marks)

 

Electric charges are arranged as shown in the diagram below.

 

 

b) What is the electric field (magnitude and direction) at point P ? (4 marks)

 

c) Now suppose a charge of is placed at point P in each of the above diagrams. Calculate the net force (magnitude and direction) acting on this charge in both cases. (4 marks)

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