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Question

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

A
0V
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B
1.5V
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C
2V
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D
3V
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Solution

The correct option is A 0VThe equivalent circuit is redrawn in the figure.Here, PQ=1030=13 and RS=515=13 so PQ=RSThus, it is a balanced Wheatstone bridge circuit and points B and D would be at the same potential. Therefore the potential difference between B and D will be zero.

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