0t20-s-approximately-how-many-electrons-pass-through-the-window-during-that-time

Question

A detector window has area 4.04.0 cm2	ext{cm}^2. A uniform current density J(t)=100tJ(t)=100t A/m2	ext{A/m}^2 is normal to the surface for 0≤t≤2.00≤t≤2.0 s	ext{s}. Approximately how many electrons pass through the window during that time?

Accepted Answer

5.0×10175.0\$$times10^{17}$$ electrons

Answer

8.0×10−28.0\$$times10^{-2}$$ electrons

Answer

1.25×10171.25\$$times10^{17}$$ electrons

Answer

2.0×10182.0\$$times10^{18}$$ electrons

A detector window has area 4.04.0 cm2\(\text{cm}\)^2. A uniform current density J(t)=100tJ(t)=100t A/m2\(\text{A/m}\)^2 is normal to the surface for 0≤t≤2.00≤t≤2.0 s\(\text{s}\). Approximately how many electrons pass through the window during that time?

A detector window has area $4.0$ ${cm}^{2}$ . A uniform current density $J of t equals 100 t$ ${A/m}^{2}$ is normal to the surface for $0 is less than or equal to t is less than or equal to 2.0$ $s$ . Approximately how many electrons pass through the window during that time?