The 2,-3, and 0.5 µC/m2 are three infinite electric sheets carrying uniform charge densities of each separated by a 1 mm, as shown in figure below .The electric field intensity at point A is:

Three very large square planes of charge are arranged as shown (on edge) in the figure. (Figure 1) From left to right, the planes have charge densities per unit area of -0.52 μC/m2 , 0.27 μC/m2 , and -0.38 μC/m2 . Find the total electric field (direction and magnitude) at the point A, B, C and D. Assume the plates are much larger than the distance AD. Express your answer to two significant figures and include the appropriate units. Assume that the positive axis is directed to the right.

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The classic Millikan oil drop experiment was the first to obtain an accurate measurement of the charge on an electron. In it, oil drops were suspended against gravity by a vertical electric field.  Assume the oil drop to be 2.30 um in radius and have a density of 934 kg/m3. a) Find the weight of the drop. b) If the drop has a single excess electron, find the magnitude of the electric field strength needed to balance its weight.

We have two uniformly charged parallel plates, as shown. Their widths are much larger than the separation between the plates. The magnitudes of the charges on each are equal. a, b, and c indicate the regions just above, in between, and just below the plates, respectively. Now let's suppose that the plates are squares with side length 1 cm, and that they have equal and opposite charges of magnitude 3.7 μC. What is the magnitude of the electric field in region b?

The figure below shows a dipole. If the positive particle has a charge of 36.9 mC and the particles are 2.62 mm apart, what is the electric field at point A located 2.00 mm above the dipole's midpoint? (Express your answer in vector form.)

A positively charged line with linear charge density λ is pictured along the x-axis with length L. Starting with the differential form of Coulomb’s Law () derive an equation for the electric field at point P at (x=a, y=0) k, a, L, and λ.

A uniform line of charge has length L=36 cm and total charge Q=2.0 μC.  What is the electric field a distance of d=50 cm above the midpoint of the line of charge?

A ring-shaped conductor with radius a = 2.30 cm has a total positive charge Q = 0.121 nC uniformly distributed around it. (electric field at point p which is in positive x-axis x= 35.0 cm) a) figure out the electric field very far away. Is it consistent with the coulombs law? b) figure out the electric field at the center of ring?

A dielectric rod with cross-section area of A and polarization of Px = ax² + b is extended from x = 0 to x = L. (a) Calculate the bound volume charge density and bound surface charge density. b) Determine the total bound charge.