Quote:
Originally Posted by jb92563
Two 50 Ohm resisters in parrallel is still 50 ohms
|
Actually....
R1=50
R2=50
1/(1/50 + 1/50) = 1/(2/50) = 1/(1/25) = 25/1 = 25 ohms
A common error in this equation occurs when one adds both the numerator and denominator. In this equation, that would yield 2/100, but that is incorrect.
Ex: 1/50 + 1/50 = 2/100 = incorrect. 1/50 + 1/50 = 2/50 = correct.
To add fractions you just find the lowest common denominator, change the numerator to suit, and add the numerators . You do not add denominators.