Find potential difference between A and B
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Explanation:
let voltage at D be zero
Hence voltage at C is 30V
in the path CAD, Same current flows through the 5Ω and 1Ω. Hence potential drop across them will be proportional to their resistances.
i e 5:1 which means 25 V drops across 5Ω resistor and 5 V drops across 1Ω resistor.
Therefore potential difference of A and D is 5V
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