INTRODUCTION TO  DC CIRCUITS

 

first we emulated the battery, the cables, and the load with lab equipment

 

Battery= bench power box

cables= resistance box

load= resistance

 

 

this is the process to obtain the value of  R-load

 

the measured value is 989 ohms

 

the measured resistance of the box which will act as the R cable is 100.8 ohms

the measured value for V-load is 10.99 V

the current in the circuit provided by the power supply is 11.14 mA

 

 

 

Here is the calculation for the time of discharge

also the calculation of the power efficiency

power lost (power of the cable) 

 power out(power of the load)

 

 

 

 

 

 

 

 

Calculation for power efficiency

calculation for max distance of the cable

 

 

max distance is 298.08/2= 146.04meters

the value obtained has to be divided by two because there is two cables connected.

 

 

In conclusion the experiment is a good modeling for the real situation. with this experiment we get a sense of the power that is being distributed (power lost, power out).We also get a sense of how long our cable has to be.