In a P type silicon sample, the hole concentration is 2.25 x 10¹⁵ / cm³. If the intrinsic carrier concentration is 1.5 x 10¹ᴼ/ cm³ the electron concentration is

In a P type silicon sample, the hole concentration is 2.25 x 10¹⁵ /

1.	In a P type silicon sample, the hole concentration is 2.25 x 10¹⁵ / cm³. If the intrinsic carrier concentration is 1.5 x 10¹ᴼ/ cm³ the electron concentration is
A.	zero
B.	10¹ᴼ/cm³
C.	10⁵/cm³
D.	1.5 x 10²⁵/cm³
Answer» D. 1.5 x 10²⁵/cm³