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  1. The mass of a copper wire of resistance R1 and length I1 is four times the mass of another copper wire of length I2 and resistance R2. If R1 = R2, which one of the following is correct ?
    1. I1 = I2
    2. I1 = 4 I2
    3. I1 = 2 I2
    4. 2 I1 = I2
Correct Option: C

NA



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