Answer:
20.6 cm
Explanation:
charge per cm = 0.14 μC
number of electrons (e) = [tex]1.8 x 10^{13}[/tex]
to get the length of tape pulled we can apply the formula below
length of tape = [tex]\frac{magnitude of charge of the electrons}{charge per cm}[/tex]
therefore we need to find the magnitude of the charge of the electrons
- 1 electron = [tex]1.602 x 10^{-19}[/tex] C
[tex]1.8 x 10^{13} electrons = 1.8 x 10^{13} x 1.602 x 10^{-19} = 2.88μC}[/tex]
now that we have the magnitude of the charge, we can find the length of the tape
- length of the tape = [tex]\frac{2.88}{0.14}[/tex] = 20.6 cm
