Question

An isentropic air turbine is used to supply 0.1 kg/s of air at 0.1 MN/m2 and at 285 K to a cabin. The pressure at inlet to the turbine is 0.4 MN/m2. The power developed by the turbine at this condition is …. (in kW). (Assume specific heat raio for air = 1.4 and specific heat at constant pressue= 1.0 kJ/kg K).

Answer 1

Explanation:

PCB Material

The PCB material are standardized with different norms. One of the most common is FR4. It defines range for most of the parameter we need to know for the wire size calculation. The problem is range are large and the calculation will vary depends on where your PCB is in the given range.

The Thickness of dielectric = the PCB height.

This is why we found RF pcb : they are particularly thin as this is allowing to make smaller RF wires. This can be a variable parameter depending on your PCB provider sourcing and these variation may impact you radio quality.