First slide
Introduction-Electromagnetic waves
Question

An Electron is constrained to move along the y-axis with a speed of 0.1 c( c is the speed of light ) in the presence of electronic wave , whose electric field  E=30  sin(1.5×107t-5×10-2x)V/m. The maximum magnetic force experienced by the electron will be :

( Given  C = 3×108 ms-1 and electron charge =1.6×10-19C )

Easy
Solution

Bmax=EmaxC=303×108=107TFmax=qvBFmax=1.6×1019×0.1×3×108×107=4.8×1019N

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