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Calculate the voltage needed to balance an oil drop carrying 10 electrons between the plates of capacitor 5mm apart.The mass of the drop is 3x10-16kg and g=10ms-2.

Atal Tiwari , 10 Years ago
Grade 12th pass
anser 1 Answers
Aziz Alam

Last Activity: 10 Years ago

We know that V/d=E

where V is voltage across the plates, d is the distance between the plates and E is the electric field.

10eE=mg where m is the mass of drop.

10eV/d=mg
=>V=mgd/10e
V=9.375 V


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