Distance travelled l1 (cm) |
Time taken t1(s) |
Distance travelled l2 (cm) |
Time takent2 (s) |
density of oil ÃÂ |
Balncing potential V |
Velocity with voltage off v1(ms-1) |
Velocity with voltage on v2(ms-1) |
radius of drop r(m) |
charge of drop q(C ) |