Question

Сила тока в нагревательном элементе электрического обогревателя равна 6,77 А. За какое время через поперечное сечение нагревательного элемента проходит 4,62×10^19 электронов? Ответ округлите до сотых.

Answer 1

t=1.35с

Объяснение:

I=q/t

I=сила тока

q=заряд

N=кол-во електронов

e=заряд електрона= -1.6×10^-19

q=N×|e|

t=? t=I/q t=I/N×|e|

t=6.61А/3.05×10^19×1.6×10^-19=1.35с

Answer 2

Calculation of Time for Electrons to Pass through the Cross-Section of the Heating Element

To calculate the time it takes for electrons to pass through the cross-section of the heating element, we need to use the formula:

Time (t) = Number of Electrons (N) / Current (I)

Given: - Current (I) = 6.77 A - Number of Electrons (N) = 4.62 × 10^19

Substituting the values into the formula, we get:

t = (4.62 × 10^19) / 6.77

Calculating this expression, we find:

t ≈ 6.82 × 10^18 seconds

Rounding this value to the nearest hundredth, the time it takes for the electrons to pass through the cross-section of the heating element is approximately 6.82 × 10^18 seconds.

Please note that the sources provided do not contain any relevant information for this specific calculation.