Question

Effective resistance between $A$ and $B$ in the following circuit

• A. $10 \, \Omega$
• B. $20 \, \Omega$
• C. $5 \, \Omega$
• D. $\frac{20}{3}\, \Omega$

Answer 1

Answer: (A)

$10 \, \Omega$

Answer 2

It is a balanced Wheatstone's bridge network with the resistances being $10\, \Omega$ each.
$\therefore R_{\text{eff}\,AB} = 10\,\Omega$