An ideal op amp with 5-k and 15-k resistors is used to create a +5-v supply from a −15-v reference. sketch the circuit. what are the voltages at the ends of the 5-k resistor? if these resistors are so-called 1% resistors, whose actual values are the range bounded by the nominal value ±1%, what are the limits of the output voltage produced? if the −15-v supply can also vary by ±1%, what is the range of the output voltages that might be found?

1in2 processor chip can be modelled as an isothermal plane wall of silicon, isothermal on both sides. the power input to the bottom of the plane wall, or the processing power of the chip, often called the thermal design power (tdp), is 100w. assume the periphery is adiabatic. the silicon is 400 microns thick. the temperature at the junction, or in this case on the bottom of the isothermal plane wall, is 85°c. what is the top surface temperature, assuming that the only mode of heat transfer is conduction