Exam-style question
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What is the significance of quantisation of charge as demonstrated in Millikan's experiment?.
- A.Charge exists in discrete amounts
- B.Charge can vary continuously
- C.Charge is only found in metals
- D.Charge is always negative
Model answer
What a good answer should say
- Charge exists in discrete amounts
Explanation
Why this works
The quantisation of charge indicates that electric charge is not continuous but exists in discrete packets, as shown by Millikan's experiment where the measured charges were integer multiples of the elementary charge (the charge of a single electron).
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