In an intrinsic semiconductor, the number of free electrons?

In an intrinsic semiconductor, the number of free electrons?

ایک اندرونی سیمی کنڈکٹر میں، مفت الیکٹرانوں کی تعداد؟
Explanation

In an intrinsic semiconductor, at thermal equilibrium, the number of free electrons is equal to the number of holes.