Question

What is the equivalent resistance of the circuit?

Answer 1

Answer:

5.5Ω

 

Explanation:

The circuit diagram shown is a parallel arrangement. To solve this problem for the equivalent resistance,

  R1  = 10Ω

  R2  = 20Ω

 R3 = 30Ω  

For circuits in parallel, equivalent resistance is ;

   $\frac{1}{Rt}$   = $\frac{1}{R1} + \frac{1}{R2} + \frac{1}{R3}$  

 Now insert the parameters and solve;

    $\frac{1}{Rt}$  = $\frac{1}{10} + \frac{1}{20} + \frac{1}{30}$  

    $\frac{1}{Rt}$   = $\frac{6 + 3 + 2}{60}$  

    $\frac{1}{Rt}$   = $\frac{11}{60}$  

    Rt  = 5.5Ω

 

Answer 2

Answer: 5.45

Explanation: A P E X