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The two long charged wires are parallel to the y-axis: 1 = 95 nC/m, 2 = -41 nC/m

ID: 1772432 • Letter: T

Question

The two long charged wires are parallel to the y-axis: 1 = 95 nC/m, 2 = -41 nC/m.

a) If the electric field at point P is 3.4 kV/m, what is its distance ("a" in the diagram) from the first wire (1)?

b) Calculate the total electrc flux through the cylindrical Gaussian surface h= 10cm.

arge, and to show y be determined by calculating the force their very small mass, can be observed in Shift was known tha* 5. (10 points) Two long charged wires are parallel to the y axis. Al = 95 nC/m, ,--41 nC/m. Im (a) If the electric field at point P is 3.4 kV/m, what is its distance ("a" in the diagram) from the first wire (2a)? a. (b) Calculate the total electric flux through the cylindrical Gaussian surface if h = 10.0 cm.

Explanation / Answer

Electric field due to both wires

E = 2k lambda1/a + 2k lambda2/0.5a

3400= 2k/a*(lambda1+2 lambda2)

a = 2*9e9*(95e-9 - 2*41e-9)/3400

= 0.0688 m answer

B) flux = q/e0

= 0.10*(95e-9 - 41e-9) /8.85e-12

= 610.2 Nm^2/C