A silicon (PN) junction at a temperature of 20°C has a reverse saturation current of 10 pico Ampere. The reverse saturation current at 40°C for the same bias is approximately.

A.

30 pA

B.

40 pA

C.

50 pA

D.

60 pA

Correct answer is B

By increasing the temperature by 10°C, Io becomes double. So by increasing temperature by 20°C, Io becomes 4 times the initial value... and it is 40 PA.