Question: Solve please In a Millikan type experiment, two horizontal charged plates are 2.5 cm apart. A latex sphere of 1.3 x 10'15 kg remains stationary

Solve please

In a Millikan type experiment, two horizontal charged plates are 2.5 cm apart. A latex sphere of 1.3 x 10'15 kg remains stationary between the plates when the potential difference between the plates is 400 V with the upper plate charged positive. +++++++++++ a. What is the type of charge on the sphere? b. What is the electric eld intensity between the plates? c. What is the charge on the sphere? d. How many excess elementary charges are on the sphere

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