a small cork with a excess charge of +6.0 μC
(1 μc = 10^-6 C) is placed 0.12 m from another cork, which carries a charge of -4.3 μC....
how many electrons are on the negative cork?
divide the charge by the charge on one electron. This does not change. The information on the positive cork, and distance, is a distractor, ignore it.
A small cork with an excess charge of +5.0 μC
is placed 0.12 m from another cork, which
carries a charge of −3.2 μC.
What is the magnitude of the electric force
between the corks? The Coulomb constant is
8.98755 × 109 N · m2/C2.
Answer in units of N.
A small cork with an excess charge of +6
.
0
μ
C
is placed 0
.
18 m from another cork, which
carries a charge of
−
3
.
2
μ
C.
What is the magnitude of the electric force
between the corks? The Coulomb constant is
8
.
98755
×
10
9
N
·
m
2
/
C
2
.
Answer in units of N
To determine the number of electrons on the negative cork, we need to calculate the charge on an individual electron and then divide the total charge on the cork by the charge of a single electron.
The charge on an individual electron is given by the elementary charge (e) which is approximately equal to -1.6 x 10^-19 Coulombs (-1.6 x 10^-19 C).
Now, let's calculate the number of electrons on the negative cork:
1. Convert the charge on the negative cork from microcoulombs (μC) to coulombs (C):
-4.3 μC = -4.3 x 10^-6 C
2. Divide the converted charge by the charge of a single electron to find the number of electrons:
Number of electrons = (-4.3 x 10^-6 C) / (-1.6 x 10^-19 C)
Performing the calculation:
Number of electrons ≈ 2.6875 x 10^13 electrons
Therefore, there are approximately 2.6875 x 10^13 electrons on the negative cork.