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An object has as excess charge of -1. 92× 10 -17 C. How many excess electrons does it have?
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An object has as excess charge of -1. 92× 10 -17 C. How many excess el...
Calculating Excess Electrons


To calculate the number of excess electrons an object has, we need to use the fundamental charge of an electron, which is -1.602 x 10^-19 C.

Formula


The formula to calculate excess electrons is:

Excess electrons = Excess charge / Fundamental charge of an electron

Calculation


Given that the object has an excess charge of -1.92 x 10^-17 C, we can calculate the number of excess electrons using the formula above:

Excess electrons = -1.92 x 10^-17 C / -1.602 x 10^-19 C
Excess electrons = 120 electrons

Therefore, the object has 120 excess electrons.

Explanation


When an object gains or loses electrons, it becomes charged. The charge of an object can be positive or negative, depending on whether it has gained or lost electrons. The charge is measured in Coulombs (C), which is a unit of electric charge.

In this case, the object has an excess charge of -1.92 x 10^-17 C, which means it has gained electrons. To calculate the number of excess electrons, we need to divide the excess charge by the fundamental charge of an electron, which represents the charge of a single electron. The result gives us the number of excess electrons that the object has.

In summary, to calculate the number of excess electrons an object has, we need to use the formula Excess electrons = Excess charge / Fundamental charge of an electron. This formula helps us understand the charge of an object and the number of excess electrons it possesses.
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An object has as excess charge of -1. 92× 10 -17 C. How many excess electrons does it have?
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