A charged ring with charge Q = 644 nC and radius R=0.67 m is placed in a tank of water. What is the electric field at the point z = 0.085 m above the midpoint of the ring, if the dielectric constant of water is 80.4? Answer in N/C and round your answer to have one digit after the decimal. Water 20 °C K = 80.4 Your Answer: Answer

View Policies Current Attempt in Progress A capacitor is constructed of two concentric conducting cylindrical shells. The radius of the inner cylindrical shell is 2.35 x 103 m, and that of the outer shell is 2.47 x 10 m. When the cylinders carry equal and opposite charges of magnitude 2.0 x 10 10 C, the electric field between the plates has an average magnitude of 3.9 x 10 V/m and is directed radially outward from the inner shell to the outer shell. Determine (a) the magnitude of the potential difference between the cylindrical shells and (b) the capacitance of this capacitor. +] Cylindrical capacitor (end view)

A 6 g ball with a charge of 4 μC hangs by a thread between two oppositely charged parallel plates as shown below. The distance between the ball & the edges of the plates is much greater than the distance between the plates. Each plate has the same constant uniform charge density. A + 30° Determine the voltage between the plates. -61.9806 V X 67.8963916567 V Determine the polarity of each plate. You will not receive credit until you have correctly selected the polarities of both plates. left plate neutral right plate impossible to determine 8 mm ×

A 1.4-µC point charge is placed between the plates of a parallel plate capacitor. The charge experiences a force of 0.89 N. What is the magnitude o of the charge density on either plate of the capacitor? 0 = i

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Four point charges q1 = 2.222µC, q2 = -0.719µC, q3 = 6.687µC, and q4 = -2µC are located at the corners of a square whose side s = 0.315m. The potential (in J/C) at the center of square is...?