1. Si en un Circuito Paralelo resistivo de cuatro (4) resistencias de qual valor ohmico, alguna de las resistencias se retira del circuito, entonces a. La intensidad total aumenta
b. La tensión total aumenta
c. La intensidad total disminuye
d. La tension total disminuye

2. Todas las resistencias de un circuito sere están
a. Sometidas a un divisor de tensión b. Sometidas a diferente Intensidad
c. Sometidas a distinta Intensidad y Tension
d. Sometidas a la misma Fuerza mecánica

3. Tres Resistores de 0.18KO, 0.27Ky 0.12K conectados en paralelo y sometidos a una tensión de 5​

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?