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R=rho( l/A)
for option P, R= rho (l/A) for option S ,R=rho (2l/2A)=rho (l/A) rho is same as both rods are made of copper
for option P, R= rho (l/A) for option S ,R=rho (2l/2A)=rho (l/A) rho is same as both rods are made of copper
harshith777:
I Don'tunderstand
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