एक अंतर्निहित (intrinsic) अर्धचालक का प्रतिरोध तापमान गुणांक कैसा होता है?

For an n-type semiconductor, the electron and hole concentrations ne and nh satisfy:

Which of the following elements is commonly used as a semiconductor in electronic devices?

In forward bias, the width of the depletion layer in a p-n junction diode: