Question

2. If
three resistors 2-2, 3-2,4-2 are connected
in series, then the effective resistance in the
circuit will be​

Answer 1

Answer:

Effective resistance=3.53

Explanation:

If 2ohm, 2ohm are connected in parellel,

Resistance:

$\frac{1}{Rp}$= $\frac{1}{2}$+ $\frac{1}{2}$=1      Rp=1

If 3ohm, 2ohm are connected in parellel,

Resistance:

$\frac{1}{Rp}$= $\frac{1}{3}$+ $\frac{1}{2}$=$\frac{5}{6}$      Rp=$\frac{6}{5}$

Resistance:

$\frac{1}{Rp}$= $\frac{1}{4}$+ $\frac{1}{2}$=$\frac{3}{4}$    Rp=$\frac{4}{3}$

ATQ, they are connected in series,

Rs=1+$\frac{6}{5}$+$\frac{4}{3}$=3.53