How many electrons must be removed from an object to leave it with a charge of 2.0 x 10 exp-10C? This is a small though not neglible static charge.
Divide that charge by the electron charge,
e = 1.6*10^-19 Coulombs
Looks like it will be about a billion electrons
thx
To determine the number of electrons that must be removed from an object to leave it with a specific charge, you need to use the elementary charge (e) and the magnitude of the given charge.
The elementary charge (e) is the fundamental unit of charge, which is approximately equal to 1.6 x 10^(-19) coulombs (C).
To calculate the number of electrons, you can use the following equation:
Number of electrons = Charge / Elementary charge
Given:
Charge = 2.0 x 10^(-10) C
Plugging in the values:
Number of electrons = (2.0 x 10^(-10) C) / (1.6 x 10^(-19) C)
Simplifying:
Number of electrons ≈ 1.25 x 10^9 electrons
Therefore, approximately 1.25 x 10^9 electrons must be removed from the object to leave it with a charge of 2.0 x 10^(-10) C.