Homework SourseAn object with a net charge of 24 muC is placed in a uniform
An object with a net charge of 24 muC is placed in a uniform electric field of 610 N/C, directed vertically. What is the mass of this object if it \"floats\" in this electric field?![An object with a net charge of 24 muC is placed in a uniform electric field of 610 N/C, directed vertically. What is the mass of this object if it \](/WebImages/18/an-object-with-a-net-charge-of-24-muc-is-placed-in-a-uniform-1037234-1761538354-0.webp "An object with a net charge of 24 muC is placed in a uniform electric field of 610 N/C, directed vertically. What is the mass of this object if it \")
Solution
To float the the gravitational force should be equal to electric force
FG = mg; g=9.8 m/s2
FE = qE
FG = FE
m = qE/g = 24x10-6 x 610/9.8 = 1.49 x 10-3 kg = 1.49 grams
