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   Computes the thrust and specific impulse of an electric thruster.
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   Form:
   [iSP, power, mdot, AStar] = TElec( T, molWt, gamma, eff, TC, p )
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   Inputs
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   T            (1,:) Thrust                  (N)
   molWt        (1,1) Molecular weight        (kg/mole)
   gamma        (1,1) Ratio of specific Heats
   eff          (1,1) Efficiency 
   TC           (1,1) Chamber Temperature     (°K)       
   p            (1,1) Chamber Pressure        (N/m^2)

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   Outputs
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   iSP          (1,:) Specific Impulse        (sec)
   power        (1,:) Power Consumption       (watts)
   mdot         (1,:) Mass flow               (kg/sec)
   AStar        (1,:) Throat area             (m^2)
   
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