Question

How many electrons are in -2.8µC of excess electric charge?

Answer 1

The number of electrons present in -2.8µC of excess electric charge is 1.75 × 10¹³ electrons

Calculating the number of electrons

From the question, we are to determine the number of electrons present in the given charge

The number of electrons can be determined by using the formula,

$n = \frac{q}{e}$

Where n is the number of electrons

q is the magnitude of charge

and e is the charge of an electron (e = 1.6 × 10⁻¹⁹ C)

From the given information,

q = 2.8 μC = 2.8 × 10⁻⁶ C

Putting the parameters into the equation, we get

$n = \frac{2.8 \times 10^{-6} }{1.6 \times 10^{-19} }$

n = 1.75 × 10¹³ electrons

Hence, the number of electrons present in -2.8µC of excess electric charge is 1.75 × 10¹³ electrons

Learn more on Calculating the number of electrons here: brainly.com/question/9509017

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