1. A vertical plate 10 cm high and 5 cm wide is cooled by natural convection. The rate of heat transfer is 5.55 W and the air temperature is 38°C. Estimate the maximum temperature of the plate. Assume...

1. A vertical plate 10 cm high and 5 cm wide is cooled by natural convection. The rate of heat transfer is 5.55 W and the air temperature is 38°C. Estimate the maximum temperature of the plate. Assume uniform heat flux.

2. Estimate the heat transfer coefficient for the power amplifier of example 5.3 if it is mounted horizontally.