What is the force on the 1 0 degree C charge in the figure\'(Figure 1) Give the

Question

What is the force on the 1 0 degree C charge in the figure'(Figure 1) Give the magnitude Express your answer using two significant Give the direction Express your answer using two significant figures. What is the strength of the electric field at the position indicated by the dot in me figure? Express your answer using two significant figures What is the direction of the electric field at me position indicated by the dot in the figure? Specify me direction at an angle above the horizontal line Express your answer using two significant figures. Two identical closely spaced circular disks form a parallel-plate capacitor. Transferring 2.3 times 109 electrons from one disk to the other causes the electric field strength between them to be 1.7 times 105N/C. What are the diameters of the disks? Express your answer using two significant figures.

Explanation / Answer

The important thing to note first is that the horizontal effects of the two 2nC charges at 45 degrees will cancel each other. The net force on the 1nC charge will be entirely on the vertical. Therefore, because of the principle of superposition, we know that we can just add the individual force vectors caused by each of the other charges and get the net force. Thus we have:

Force of 6nC charge on 1nC charge:

F_6=k(1*10^-9)(-6*10^-9)/(0.05^2)

Vertical force of each 2nC charge on 1nC charge:

F_2=k(2*10^-9)(1*10^-9)*cos(45)/(0.05^

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