Answer & explanation
Correct answer: option 4
$\text{Copper is a conductor so its resistance decreases with decrease in temperature.}$
$\text{Germanium is a semi conductor so its resistance increases with decrease in temperature.}$
Correct answer: option 4
$\text{Copper is a conductor so its resistance decreases with decrease in temperature.}$
$\text{Germanium is a semi conductor so its resistance increases with decrease in temperature.}$