A glass rod charged with +3.2 x 10^-9 C has how many electrons removed?

A glass rod charged with +3.2 x 10^-9 C has how many electrons removed?

• A. 5.1 x 10^11 protons
• B. 5.1 x 10^11 electrons
• C. 2.0 x 10^10 protons
• D. 2.0 x 10^10 electrons

Answer: (D)

To understand how many electrons were removed from the glass rod charged with +3.2 x 10^-9 C, we need to relate the amount of charge to the charge of a single electron. The elementary charge, which is the charge of an electron, is approximately -1.6 x 10^-19 C. When electrons are removed from an object, it becomes positively charged. In this case, the glass rod has a positive charge of +3.2 x 10^-9 C. To find out how many electrons were removed, we need to divide the total charge of the rod by the charge of one electron. The mathematical representation of this would be: Number of electrons removed = Total charge / Charge of one electron = (3.2 x 10^-9 C) / (1.6 x 10^-19 C/electron). Calculating this gives us: Number of electrons removed = (3.2 x 10^-9) / (1.6 x 10^-19) = 2.0 x 10^10 electrons. Thus, the glass rod had approximately 2.0 x 10^10 electrons removed to achieve a charge of +3.2 x 10^-9 C

To understand how many electrons were removed from the glass rod charged with +3.2 x 10^-9 C, we need to relate the amount of charge to the charge of a single electron. The elementary charge, which is the charge of an electron, is approximately -1.6 x 10^-19 C.

When electrons are removed from an object, it becomes positively charged. In this case, the glass rod has a positive charge of +3.2 x 10^-9 C. To find out how many electrons were removed, we need to divide the total charge of the rod by the charge of one electron. The mathematical representation of this would be:

Number of electrons removed = Total charge / Charge of one electron = (3.2 x 10^-9 C) / (1.6 x 10^-19 C/electron).

Calculating this gives us:

Number of electrons removed = (3.2 x 10^-9) / (1.6 x 10^-19) = 2.0 x 10^10 electrons.

Thus, the glass rod had approximately 2.0 x 10^10 electrons removed to achieve a charge of +3.2 x 10^-9 C