1 of 3 FieldsII 1 What the magnitude of the vector i j x y A 1 B 2 C 0 D Some other number is not a vector E No answer because x y Answer Some other number The magnitude of the vector is 2 FieldsII 2 There are no charges inside the regions shown Which of the following are possible electric field line configurations A a only B b only C c only D None are possible E Some other answer all a and b only etc b a c Answer Some other answer a and c are possible field line diagrams 9 11 2009 PHYS1120 Dubson Fa09 University of Colorado 2 of 3 FieldsII 3 Consider the four electric field line patterns shown Assume that that are no charges in the regions shown Which if any of the patterns represent possible electrostatic fields A All are possible B II only C II and III only D None are possible I II III IV E None of the above Answer II only 9 11 2009 PHYS1120 Dubson Fa09 University of Colorado 3 of 3 FieldsII 4 From the figure what can you say about the magnitude of the charge on the bar Q bar compared to the magnitude of the charge Q of the positive point charge Q A Q bar Q B Q bar Q C Q bar Q Qbar From the figure what can you say about the net charge on the bar A Qbar 0 B Qbar 0 that is the bar has a net positive charge C Qbar 0 the bar has a net negative charge D Not enough information in the figure to answer the question Answers Q bar Q Qbar 0 FieldsII 5 Two infinite planes are uniformly charged with the same charge per area If one plane only were present the field due to the one plane would be E B A The field in region B has magnitude A zero B E C 2E D depends on exact position C The field in region A has magnitude A zero B E C 2E D depends on exact position Answers in region B the field has magnitude zero in region A the field has magnitude 2E 9 11 2009 PHYS1120 Dubson Fa09 University of Colorado
View Full Document
Unlocking...