Question: 1 . Two charges Q1 = 1.4 HC and Q2 = -7.3 HC C are on the x-axis as shown below. Calculate the net electric

 1 . Two charges Q1 = 1.4 HC and Q2 =

-7.3 HC C are on the x-axis as shown below. Calculate the

1 . Two charges Q1 = 1.4 HC and Q2 = -7.3 HC C are on the x-axis as shown below. Calculate the net electric field at points a, b, and c. 15 cm 15 cm X Q2 01 + b SOLUTION : Q1=1.4 x 10-6 Q2 = -7.3 x 10-6 (A) Ead = 9 x 10 ' N x m 2/c2 ( 1 .4 x 10 C (0. .06m ) Ead = 3.5 x 10 6 N/C Ea2 =9 x 10 ' N x m 2/c2 ( -7 . 3 x 10 C (0.. 16 m)2 Eaz = 1.36 x 10 N/C Eneta = Eal + Eaz Eneta= (3.5 x 10 6 N/C) - (1.36 x 10 6 N/C) Eneta =2.14 x 10 N/C (B)

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