Question

Quarter Circle we have a quarter-circle of charge with radius R arranged as shown in the picture. The segment is uniformly charged, with a charge density of λ. 45° What is the horizontal component of the electric field produced by this shape, as seen at the origin? Incorrect 0 Incorrect Osin(0dot Incorrect kd Incorrect x/4 Correct: None of the above. Air-Water Series Capacitor 2 You have been charged to monitor the water level in a shallow tank, and decided to do this by monitoring the capacitance between two electrodes located at the top and bottom of the tank, as shown. The plates have an area A and are separated by a distance d. when water, with dielectric constant Kr fills 45% of the the tank, what is the measured capacitance? Air Water Correct d(0.55k0.45) Incorrect d(0.55x0.45) Incorrect (0.55K +0.45)

Answer 1

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