Question

Find the effective resistance in the following circuit.

• A. $8\Omega$
• B. $7\Omega$
• C. $5\Omega$
• D. $10\Omega$

Answer 1

The correct option is D $10\Omega$

The given circuit can be redrawn as:


Since all the three resistances are connected in series, the effective resistance $R_{eff}$ is the sum of the individual resistances.
$\therefore R_{eff}=R_1+R_2+R_3$
$=5\Omega +3\Omega +2\Omega$
$\Rightarrow R_{eff}=10\Omega$