Question
What is the equivalent resistance of a parallel circuit with a 5.0 kΩ resistor, a 2.5 kΩ resistor, and 10.0 kΩ resistor?
A. 0.10 kΩ
b. 0.83 kΩ
c. 10 kΩ
d. 1.4 kΩ
e. 18 kΩ
A. 0.10 kΩ
b. 0.83 kΩ
c. 10 kΩ
d. 1.4 kΩ
e. 18 kΩ
Answers
MathMate
R<sub>eq</sub>
=1/(1/R1+1/R2+1/R3+...)
So, with 3 resistors,
R<sub>eq</sub>
=1/(1/5+1/2.5+1/10)
=...
=1/(1/R1+1/R2+1/R3+...)
So, with 3 resistors,
R<sub>eq</sub>
=1/(1/5+1/2.5+1/10)
=...
Damon
1/R = 1/5 + 2/5 + 1/10 = (2+4+1)/10 = 7/10
so R = (10/7) k Ohms =1.44 k Ohms
so R = (10/7) k Ohms =1.44 k Ohms
Me and I
thx, MathMate and Damon :)