When do we say that 2 resistors are in parallel?

When P.d. is different

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When P.d. is same

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When current is same

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can’t say

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Solution

The correct option is B
When P.d. is same

When resistors are in parallel then the potential diff. across them is same. By ohm’s law we have (v=lR) and when currents pass through resistors we have total P.d. as and in the branches respectively and is found to be equal.

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