Question

1)A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of -0.7 µC. How many electrons are transferred from the wool shirt to the plastic rod?

Answer 1

electrons are transferred from the wool shirt to the plastic rod is 4.375 ×
`10^(12)` electrons

Step-by-step explanation:

given data

Amount of charge transferred Q = -0.7 μC = -0.7 ×
`10^(-6)` C

electrons of charge e = -1.6 ×
`10^(-19)` C

solution

we apply formula here for total charge of electrons that is

Q = n × e ...................2

here n is no of electron that is

n =
`(Q)/(e)`

put here value

n =
`(-0.7*10^(-6))/(-1.6*10^(-19))`

n = 4.375 ×
`10^(12)` electrons

so here electrons are transferred from the wool shirt to the plastic rod is 4.375 ×
`10^(12)` electrons