Posted by **Sarah (C)** on Tuesday, July 5, 2011 at 8:00pm.

I want to understand this concept more than anything so advice as well as hints to solve this problem are greatly appreciated.

26. Two fixed charges, -4.0E-6 C and -5.0E-6 C, are separated by a certain distance.

a) is the net electric field at a location halfway between the two charges

1) directed toward the -4.0E-6 C charge

2) zero

3) directed toward the -5.0E-6 charge.

30)Two charges of +4.0 E-6 C and +9.0 E-6 C are 30 cm apart. Where on the line joining the charges is the electric field zero?

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