A ball of 80mg mass and a 2*10-8 charge is hung with a thread in a uniform horizontal electric field of 2*104V/m. What is the angle made by the thread with vertical? a) 27 degree b) 30 degree c) 45 degree d) 0 degree
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A ball of 80mg mass and a 2*10-8 charge is hung with a thread in a uniform horizontal electric field of 2*104V/m. What is the angle made by the thread with vertical?
a) 27 degree
b) 30 degree
c) 45 degree
d) 0 degree
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