JEE Main 2021 · PhysicsMultiple choiceSingle correctMediumMulti-step
JEE Main 18 March 2021, Shift 1, Physics Q1
Question 1 of 90 in this shift, Physics question 1 of 30, Section A.
An oil drop of radius 2 mm with a density 3 g cm is held stationary under a constant electric field V m in the Millikan's oil drop experiment. What is the number of excess electrons that the oil drop will possess ?
Consider m/s
- (1)
- (2)Official answer
- (3)
- (4)
Official answer
Option 2
NTA final key.
- Chapter
- Electric Charges and Fields
- Topic
- No close match in our taxonomy
- Idea tested
- No close match in our taxonomy