Example 2: The conductivity of n-side in the Ge PN junction is 10 s/m and for the
p-side is 10's/m. Find the built in potential for the junction at 300°K?
where n; = 2.5 x 1019mm = 0.36 m2/v. s and
0.36 mº/v. s and p = 0.16 mº/v. s. I hope you answer me​

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

What is the angular momentum of the bar about the axle?

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?