Question

A charged oil drop with a mass of \(2 \times 10^{-4} \) kg is held suspended by a downward by an Electric field of 300 N/C . Find the charge on the drop.

Answer 1

\(\color{blue}{\text{Originally Posted by}}\) @mathslover
A charged oil drop with a mass of \(2 \times 10^{-4} \) kg is held suspended by a downward by an Electric field of 300 N/C . Find the charge on the drop.
\(\color{blue}{\text{End of Quote}}\)

Answer 2

@ganeshie8

Answer 3

sorry cant help you there

Answer 4

No problem :)

Answer 5

Weight is balanced by the electrostatic force.

mg = |q|E => |q| = mg/E

Now, if field is downward, since electrostatic force must be up, the q is negative. So final answer is :

q = -mg/E

Answer 6

Got it Sir. Thanks!