Question

As a result of Millikan's oil drop experiment, value of electronic charge was found to be approximately equal to:

• A. $1.6\times {10}^{-19}\text{C}$
• B. $-1.6\times {10}^{-19}\text{C}$
• C. $3.2\times {10}^{-19}\text{C}$
• D. $-3.2\times {10}^{-19}\text{C}$

Answer 1

The correct option is B $-1.6\times {10}^{-19}\text{C}$

Millikan's oil drop experiment was conducted to measure the charge of a single electron. The calculated value was $-1.5924\times {10}^{-19}\text{C}$, which is within 1% difference of the currently accepted value $-1.6\times {10}^{-19}\text{C}$.