A liquid drop having $6$ excess electrons is kept stationary under a uniform electric field of $25.5\, k\,Vm^{-1}$ . The density of liquid is $1.26\times10^3\, kg\, m^{-3}$ . The radius of the drop is (neglect buoyancy)
A liquid drop having $6$ excess electrons is kept stationary under a uniform electric field of $25.5\, k\,Vm^{-1}$ . The density of liquid is $1.26\times10^3\, kg\, m^{-3}$ . The radius of the drop is (neglect buoyancy)
- [JEE MAIN 2013]
- A
$4.3\times10^{-7}\, m$
- B
$7.8\times10^{-7}\, m$
- C
$0.0078\times10^{-7}\, m$
- D
$3.4\times10^{-7}\, m$
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