Sketch the low- and high-frequency cv characteristics (and explain what causes the difference) of an ideal mos capacitor with a high-k dielectric (kox = 25) for a n-type semiconductor (kox = 10). mark the accumulation, depletion, and inversion regions, and the approximate locations of flat band and threshold voltages.

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.