question_answer

Four resistors are connected as shown in the figure. A 6 V battery of negligible resistance is connected across terminals A and C. The potential difference across terminals B and D will be:

A) Zero               

B) 1.5 V

C) 2 V                 

D) 3 V

Correct Answer: A

Solution :

(a) Zero The given figure is a circuit of balanced Wheatstone bridge as shown in the figure. Points B and D would be at the same potential.           i,e.,                   \[{{V}_{B}}-{{V}_{D}}=0V\]