NEET Physics Question - Electrostatics

If a body has a charge of /(10^{-12}\) coulomb :

the body has $6.25\times 10^{6} $excess of electrons

the body has $ 625\times 10^{6}$ excess of electrons

the body has $6.25\times 10^{6}$ deficiency of electrons

the body has $6.25\times 10^{3} $deficiency of electrons

To determine the deficiency of electrons for a body with a charge of $10^{-12} \, \text{C}$ , follow these steps:

Charge of a single electron: The charge of one electron is $e = 1.6 \times 10^{-19} \, \text{C}$ .
Number of electrons (deficiency): The total number of electrons causing the charge is given by:
$n = \frac{\text{Total charge}}{\text{Charge of one electron}} = \frac{10^{-12}}{1.6 \times 10^{-19}} = 6.25 \times 10^{6}.$
Interpretation: Since the body is positively charged, it has a deficiency of $6.25 \times 10^6$ electrons.

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