Answer:
electrons
Explanation:
Given that,
Total charge = 9 mC = 0.009 C
0.009 C of charge passes through a wire in 3.6 s.
Let q' is the charge that passes through it in 10 s.
So,
We know that,
q = ne
Where
n is the number of electrons
So, electrons must pass through the cross-sectional area.
let's take the volume of each first:
ice cream: 10×10×4=400cm^3
freezer: 40×40×20=32,000cm^3
now we just divide: 32000/400=80
true
hope it helped you
the correct answer would be B. have a good day!