what is the flux of the electric field E bar = 24 i cap + 30 j cap + 28 k cap N/C through an area of 20m2 on yz plane ?
 

Dear student, 
Area = 20i, since it is in y-z plane.
E= 24i+30j+28k
Flux associated with any field is given by : E.S = 20*24 = 480 UNITS
Regards

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