question_answer

Four resistances of 100 W each are connected in the form of square. Then, the effective resistance along the diagonal points is                                                     [MH CET 2000]

A)         200 W                              

B)         400 W

C)         100 W                              

D)         150 W

Correct Answer: C

Solution :

                                         The figure can be drawn as follows         \[{{R}_{AC}}=\frac{200\times 200}{200+200}=100\Omega \].