The value of charge on the oil droplets experimentally observed were`-1.6 xx 10^(-19), - 2.4 xx 10^(-19) and - 4xx10^(-19)` C. The value of electronic charge, indicated by these results is
(1) `-1.6 xx 10^(-19)`
(2) `-2.4 xx 10^(-19)`
(3) `-4 xx 10^(-19)`
(4) -`0.8 xx 10^(-19)`

Explanation

To solve the problem, we need to determine the value of the electronic charge (e) based on the given charges of oil droplets. The charges observed are:

1. \( q_1 = -1.6 \times 10^{-19} \) C
2. \( q_2 = -2.4 \times 10^{-19} \) C
3. \( q_3 = -4.0 \times 10^{-19} \) C

### Step 1: Understand the relationship between charge and number of electrons

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