1c ??
wen germanium is doped 1 part in a million wid indium itz ocnductivity increase by a factor of
10
10^3
10^6
10^5
gimme d formula or wat so stuff u noe n d answer
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18 Answers
1see dis..
see dis.. i got dis frm internet..
The addition of 0.001% of arsenic (impurity) donates extra 1017 free electrons in the same volume and the electrical conductivity increases about 10,000 times. "
here they are addin 0.001%.. i.e 1/1000 n d conductivity increases 10,000 times..
but in dis question we are addin i part per million i.e 1/1000000.. or 1/(1000)*(1000)
so d conductivity increases 1/1000(10,000)=10...
so ans s a)10..
1no need to worry abt
1 part in a million as dopin is always done in 1ppm...
but wait i ll tell d ans.....
24aisa question pehle kabhi nahin dekha..........[11][11]
whats the source???