00:01
In this problem, we know area concentration is equal to n n i exponential of e p minus e i over kb t number one, and where we can say n i is equal to intrinsic carrier concentration and k b is the boltzman constant which is equal to 1 .38 into tandyres power minus 23 zoult per calvin and in first part, absolute temperature, that is t is equal to 300 kelvin.
01:16
From first equation, from equation 1, we get n is equal to n a, that is 2 into tandyres power 16 per centimeter cube.
01:31
Therefore, n .a, which is equal to n .i, exponential term of ef minus ei over kbt, and ef minus ei is equal to kbt, log of n a over ni.
02:00
And by substituting values that is, walsman constant is equal to 138 into 10 the raise for minus 23 and temperature is 300 kelvin and low of 2 into 10 the raise power 16 over 1 .5 into 10 the raise power 10.
02:23
Then by calculating we get 5 .83 into 10 the raise per minus 12...