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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 3 - Current Electricity > Two sources of equal emf are connected to an external resistance R. The internal resistance of the two sources are R1 and R2 (R1 > R2 ​). If the potential difference across the source having internal resistance R2 is zero, then:

Two sources of equal emf are connected to an external resistance R. The internal resistance of the two sources are R1 and R2 (R1 > R2 ​). If the potential difference across the source having internal resistance R2 is zero, then:

If a wire is stretched to make it 0.1 % longer its resistance will