A silicon piece and a silver piece are connected in series and a potential difference is applied between their free ends. The potential difference applied on them are $V_{1}$ and $V_{2}$ respectively. They are then cooled to $200 K$ . Now :
$V_{1}$ increases and $V_{2}$ decreases
Both increase
Both decrease
$V_{1}$ decreases and $V_{2}$ increases

Question

A silicon piece and a silver piece are connected in series and a potential difference is applied between their free ends. The potential difference applied on them are $V_{1}$ and $V_{2}$ respectively. They are then cooled to $200 K$ . Now :
$V_{1}$ increases and $V_{2}$ decreases
Both increase
Both decrease
$V_{1}$ decreases and $V_{2}$ increases

Toppr Admin · Accepted Answer

The temperature coefficient-xA0- of metal is positive and that of-xA0-semiconductor is negative-x2234- When cooled- the R value of silver decrease and that of silicon increases-Hence- V1 increases and V2 decreases-

The temperature coefficient of metal is positive and that of semiconductor is negative.∴ When cooled, the R value of silver decrease and that of silicon increases.Hence, V1 increases and V2 decreases.

The temperature coefficient of metal is positive and that of semiconductor is negative.
$∴$ When cooled, the $R$ value of silver decrease and that of silicon increases.
Hence, $V_{1}$ increases and $V_{2}$ decreases.