Calculate the number of electrons which should be removed from a conductor so that it acquires a positive charge of `3.5 nC`?

Explanation

To calculate the number of electrons that should be removed from a conductor to acquire a positive charge of \(3.5 \, \text{nC}\), we can follow these steps:

### Step 1: Understand the relationship between charge and number of electrons
The charge \(Q\) on the conductor can be expressed in terms of the number of electrons \(n\) removed and the elementary charge \(E\) (the charge of a single electron). The relationship is given by the formula:
\[ Q = n \cdot E \]
where:
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