Question

How many electrons must be transferred from an object to produce a charge of 1.15 c? (express your answer to three significant figures.)?

Answer 1

Approximately 7.19×1018 electrons must be transferred to produce a net charge of 1.15 C, using the fundamental charge of an electron, which is -1.60×10-19 C/e-.

Step-by-step explanation:

To determine how many electrons must be transferred to produce a charge of 1.15 C, we use the fundamental charge of an electron which is approximately -1.60×10-19 C/e- (coulombs per electron). The number of electrons ne that must be transferred is calculated by dividing the total charge by the charge per electron:

ne = Total Charge / Charge per Electron

ne = 1.15 C / 1.60×10-19 C/e-

By performing the division, we get:

ne ≈ 7.19×1018 electrons

This means that approximately 7.19×1018 electrons must be transferred to produce a charge of 1.15 C. Keep in mind that due to the negative charge of electrons, gaining electrons will result in a negative net charge, while losing electrons will result in a positive net charge.

Answer 2

To produce a charge of 1.15 Coulombs in an object, we need to transfer = 1.15/(charge on an electron) number of electrons

As we know that, total charge on an electron = 1.60217662 Ă— 10 ^-19 coulombs
Hence, number of electrons required to move = 1.15/(1.60217662 Ă— 10 ^-19) = 0.71777 x 10^19 electrons, i.e. 7.17 x 10^18 electrons upto 3 significant figures