Question: A 1 5 - cm 2 0 - cm circuit board houses on its surface 1 2 0 closely spaced logic chips, each dissipating 0

A 15-cm 20-cm circuit board houses on its surface 120 closely spaced logic chips, each dissipating 0.12 W. If the heat transfer from the back surface of the board is negligible. determine (a) the amount of heat this circuit board dissipates during a 10-hour period, in kWh, and (b) the heat flux on the surface of the circuit board, in W/m^2

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