Answer:
a)
b)
c)
d)
Explanation:
From the question we are told that:
Diameter
Conductivity
Electron mobility
Electric field
a)
Generally the equation for Charge Density is mathematically given by
Therefore
b)
Generally the equation for current density is mathematically given by
c)
Generally the equation for current in wire is mathematically given by
d)
Generally the equation for electron draft velocity. is mathematically given by
Answer:
The height of father = 178 cm.
Explanation:
The height of your father is 70 inches.
There are 2.54 centimeters in an inch
1 inch = 2.54 cm
70 inches = 70 x 2.54 = 177.8 cm
Rounding to the nearest centimeter.
70 inches = 177.8 cm = 178 cm
The height of father = 178 cm.
In Thomson's experiment, when the magnetic force balanced the electric force, the velocity of the beam was
where E is the magnitude of the electric field and B the magnitude of the magnetic field.
Let's see why. The force exerted by the electric field of intensity E on each electron is
where
is the electron charge.
The force exerted by the magnetic field of intensity B on each electron is
where v is the speed of the electrons.
When the two forces are balanced, we have:
from which we find
I’m done with my homework done and I got to go to get my homework done and I got to go to get my homework done