Scanning Electron Microscope

In this video, I explain about SEM, its basic parts and it's working and image formation.

[@anjalisrivastava7929]

You explain the concept so well ....it's amazing 🤩

[@user-wk2gp3tu8h]

Thank you very much sir 💯

[@sanarishoo]

Thank u soo much !!!🥰

[@sameersarsalmaj5707]

Sir staining histology ka video

[@kuldipikayadav9158]

Happy teacher's Day sir 🥰🙏

[@yashpatil3859]

Thanks sir 👍

[@arupghoshal5814]

The fesem machine stops running due to the lockdown period. And the electron gun is turned off for 10 months. After starting now it seen that the emission current is changing fast. before lockdown it was around 38microampere at 15kv. Now it's 15.8 microampere at 15kv. Yesterday we start running the machine. Want to know the cause of the emission current decrease. Please help