A charge of −12 nC is given to a body. The number of excess electrons …

Question

A charge of −12 nC is given to a body. The number of excess electrons on the body is:

Accepted Answer

A. 7.5 × 10¹⁰

n = |q|/e = (12 × 10⁻⁹) / (1.6 × 10⁻¹⁹) = **7.5 × 10¹⁰ electrons**.
Body is negatively charged
→ excess electrons (matches the −12 nC sign).

Answer

1.92 × 10⁻²⁷

Answer

7.5 × 10¹⁹

Answer

1.92 × 10¹⁰

A charge of −12 nC is given to a body. The number of excess electrons on the body is: