Question

An electric field is applied across a semiconductor. Let ${}^{\prime }{n}^{\prime }$ be the number of charge carriers. As temperature increases, ${}^{\prime }{n}^{\prime }$ will

• A. increase
• B. decrease
• C. does not change
• D. may increase or decrease

Answer 1

Answer: (A)

increase

Temperature rise will reduce the band gap and the electric field will induce the increase in the no. of charge carriers.