Question

the total Resistance needed in a given circuit is 50 ohm a student has three resistors of 3 ohm 6 ohms and 48 ohms available with the how should we connect these resistors.

Answer 1

Answer:

Use one 3 ohm resistor and one 6 ohm resistor in paralel

Explanation:

The equation to solve two resistor in paralel:

$R=({\frac{1}{R1}+\frac{1}{R2} } )^{-1}$

For the case of only two resistor:

$R=\frac{R1*R2}{R1+R2}$

Doing this for the 3 and the 6 ohm resistor plus the 48 ohm:

$R=\frac{3*6}{3+6}+48=50$