15. Find the force on an electron crossing a uniform magnetic field of intensity 0.5 T velocity of 106 ms-1. The charge carried by the electron is -1.6 x 10-19C.​

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure