If the length of the intrinsic region in IMPATT diode is 2 m and the carrier drift velocity are 107 cm/s, then the drift time of the carrier is:

If the length of the intrinsic region in IMPATT diode is 2 m and the

1.	If the length of the intrinsic region in IMPATT diode is 2 m and the carrier drift velocity are 107 cm/s, then the drift time of the carrier is:
A.	10<sup>-11</sup> seconds
B.	2 10<sup>-11</sup> seconds
C.	2.5 10<sup>-11</sup> seconds
D.	none of the mentioned
Answer» C. 2.5 10<sup>-11</sup> seconds