What did Robert Millikan discover?

Answer 1

The charge on the electron.........

Nobel laureate and exceptionally talented experimental physicist Bob Millikan measured the electron's charge exactly and confirmed the photoelectric effect through experimentation.

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Answer 2

Kai Bowman

Through his well-known oil drop experiment, Robert Millikan discovered the fundamental unit of electric charge, or electron's charge, measuring the charge of individual electrons and determining that it was roughly 1.6 x 10^-19 coulombs. This discovery led to important discoveries about the nature of electricity and made a significant contribution to the advancement of modern physics.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.