An undergraduate student is tasked with assembling a distribution of charges. The charges are located on the corners of an equilateral triangle with side length 1.35 m. How much work is it to assemble the charges if the charges have magnitudes of +3.45 microcoulombs, + 7.65 microcoulombs, and - 1.15 microcoulombs? Answer in Joules.   Question 4 options:   A) 2.61E-01   B) 9.07E-02   C) 2.40E-01   D) 6.72E-02   E) 1.01E+01   F) 1.93E-01

A Geiger-Mueller tube is a radiation detector that consists of a closed, hollow, metal cylinder (the cathode) of inner radius ra and a coaxial cylindrical wire (the anode) of radius (see figure below) with a gas filling the space between the electrodes. Assume that the internal diameter of a Geiger-Mueller tube is 1.95 cm and that the wire along the axis has a diameter of 0.190 mm. The dielectric strength of the gas between the central wire and the cylinder is 1.25 x 106 V/m. Use the equation ain 2πrle= to calculate the maximum potential difference that can be applied between the wire and the cylinder before breakdown occurs in the gas. €0 Anode Cathode 148 X Your response differs from the correct answer by more than 10%. Double check your calculations. V Need Help? Read It

A potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.35 × 10-20 J of work is required to eject a positive sodium ion (Na+) from the interior of the cell, what is the magnitude of the potential difference between the inner and outer surfaces of the cell? magnitude of the potential difference:

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You are working in a laboratory, using very sensitive measurement equipment. Your supervisor has explained that the equipment is also very sensitive to electrical discharge from human operators. Specification tables for the equipment indicate that an electrical discharge providing even a very small amount of energy of 250 μJ is enough to damage the equipment. Your supervisor wants to install an apparatus that will be used to remove the electrical charge from individuals’ bodies before they touch the equipment. To do this, she asks you to estimate (a) the capacitance of the human body and determine (b) the charge on the body and (c) the electric potential of the body, relative to a point infinitely far away, corresponding to the energy transfer that will damage the equipment.

30 25 y = 0.8x + 1.2 %3D 20 15 10 15 20 25 30 For the plot and trendline equation above, the x-data is electric potential in volts (V) and the y-data is power in watts (W). What is the value of m? What is the value of b? w] 10

How much charge (in nC) in total is stored in the following system of capacitors connected to a 1.5 V battery? V G₁ One is filled with air, and the other is filled with a dielectric for which Ke = 2.1. Both capacitors have a plate area of 7 × 10-3 m² and a plate separation of 2 mm.