How many electrons pass through a 20-$\Omega$ resistor in 10 min if there is a potential drop of 30 volts across it?

Question

Quizplus · Accepted Answer

Explanation:The number of electrons passing through a resistor is given by the equation:n = (Q/e) = (It/e)where:n is the number of electronsQ is the charge (in coulombs)e is the charge of an electron (1.602 x 10^-19 coulombs)I is the current (in amperes)t is the time (in seconds)In this problem, we are given the following information:V = 30 voltsR = 20 ohmst = 10 minutes = 600 secondsWe can use Ohm's law to find the current:I = V/R = 30 volts / 20 ohms = 1.5 amperesNow we can calculate the number of electrons:n = (It/e) = (1.5 amperes * 600 seconds) / (1.602 x 10^-19 coulombs) = 5.625 x 10^21 electronsTherefore, the correct answer is A) 5.6 F1F1F1S1F1F1F10 10²¹.

How Many Electrons Pass Through a 20- Ω\OmegaΩ Resistor in 10 Min If There Is a Potential Drop

How Many Electrons Pass Through a 20- $\Omega$ Resistor in 10 Min If There Is a Potential Drop