The torque developed by an induction motor is zero when it rotates at synchronous speed because: a) the full-load speed is equal to the synchronous speed
b) squirrel-cage reaction occurs
c) no currents are induced in the rotor
d) the currents induced in the rotor cancel out

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