An ac current given by i (t) = 5sin( in which t is in seconds and the angle is in radi- ans, flows through an element of an electrical circuit. a. Sketch i(t) to scale versus time for t ranging from 0 to 15 ms. b. Determine the net charge that passes through the element between t = 0 and t = 10 ms. c. Repeat for the interval from t = 0 to t = 15 ms. 20

.1.1 . Describe the theoretical underpinnings of superconductivity and its potential applications in electrical engineering, highlighting the challenges associated with achieving practical superconducting devices. don't use Al solution either dislike

A practical silicon-based solar cell is constructed from a n+ p junction. a. Explain briefly the meaning of the notation n+ ? b. Draw a sketch showing the device structure of this solar cell. c. This cell shows a photocurrent IL = 10.9 A under AM1.5G illumination.If the temperature is 25oC, what is VOC ? Assume that the saturatedcurrent IS = 1×10-9 A.

What is a dielectric material? Give two examples.