A sphere has a negative charge of 6.4 × 10-7 coulomb.The approximate number of electrons that must be removed to make the sphere neutral is
A)1)6 × 10-8.
B)9)8 × 103.
C)6)4 × 1026.
D)4)0 × 1012.

Question

Quizplus · Accepted Answer

The charge of one electron is -1.6 x 10^-19 C. Therefore, the number of electrons that must be removed to make the sphere neutral can be calculated as:

(number of electrons) x (-1.6 x 10^-19 C/electron) = -6.4 x 10^-7 C

Solving for (number of electrons), we get:

(number of electrons) = -6.4 x 10^-7 C / (-1.6 x 10^-19 C/electron) = 4 x 10^12

Therefore, approximately 4 x 10^12 electrons must be removed to make the sphere neutral.

A Sphere Has a Negative Charge of 6