1C charge is equivalent to charge on how much number of protons?6×10187×10198×10209×1021

1. Break Down the Problem

To solve the question, we need to find out how many protons correspond to a charge of 1 coulomb. We will use the elementary charge of a proton, which is approximately $e = 1.6 \times 10^{-19}$ coulombs.

2. Relevant Concepts

Using the formula: $\text{Number of protons} = \frac{\text{Total charge}}{\text{Charge per proton}}$

Where:

• Total charge = $1 \, C$
• Charge per proton (elementary charge) = $1.6 \times 10^{-19} \, C$

3. Analysis and Detail

Now we can substitute the values into our formula:

$\text{Number of protons} = \frac{1 \, C}{1.6 \times 10^{-19} \, C}$

Calculating this gives:

$\text{Number of protons} = \frac{1}{1.6 \times 10^{-19}} \approx 6.25 \times 10^{18}$

4. Verify and Summarize

Now, we need to ensure our result is consistent:

• The elementary charge is correctly used.
• The calculation shows $6.25 \times 10^{18}$, which aligns well with the provided options.

Final Answer

1 coulomb of charge is equivalent to approximately $6.25 \times 10^{18}$ protons. Therefore, the closest answer to the options provided is $6 \times 10^{18}$.