In a photo emissive device and emission efficiency is increased by

Consider the following statements about diamagnetic material and diamagnetism.

1. The materials have negative magnetic susceptibility.
2. At very low temperature diamagnetic materials.

Which of the statements given above is/are correct?

In fabricating silicon BJT in ICs by the epitaxial process, the number of diffusions used is usually

In common base connection, the output characteristics of a bipolar junction transistor is drawn between

Secondary emission occurs in