Question

find the resistance of AB in the given figure ​

Answer 1

the resultant resistant is .....

$10 + 10 + \frac{(20 + 30) \times 100}{(20 + 30) + 100} \\ = 20 + \frac{5000}{150} \\ = 20 + \frac{100}{3} \\ = \frac{160}{3} ohm = 53.33 \: ohm$