2014年4月21日 星期一

Day 14 Parallel and Series Circuits 04/16/2014

Voltage:

In this lab we were ask to find the voltage and current by ammeters. As the result, the initial voltage and final voltage are the same, which means the voltage won't loss during the circuits. However, the current stay constant at any position on the circuit. 

Parallel Circuits:



Find the voltage and current under the parallel circuits condition. As result, the voltage remain constant, and the initial current is equal to the final current. 

Decoding and Measuring Resistors:


Decoding the resistors by the key provided, and calculate the percent discrepancy by subtract the difference between coded and measure then divide by the coded one. As the result, the gold one is much accurate which is not suppose to be.

The Equivalent Resistance for a Network


Key:
                     Resistance of Series = sum of all resistance
                     Resistance of Parallel = 1/R1+1/R2+1/R3+............. then flip it up side down 

Loop Rule


Follow the step below:

  • Draw Circuit
  • Assign current to each element
  • Apply loop rule to each loop
  • Mathematics
About the loop rule, when current direction is same as loop direction then it is negative.
About the voltage, from (-) -> (+) is positive, but from (+) -> (-) is negative.
 










沒有留言:

張貼留言