Part A.
In order for the net magnetic field at the center of the circles to be zero, the individual magnetic fields produced by the wires must cancel each other. So in terms of direction, they must be opposite. The answer is:
<span>The currents direction must be counterclockwise
Part B
We have the relationship:
I</span>₁<span>/D</span>₁<span> = I</span>₂<span>/D</span>₂<span>
10/24 = I</span>₂/38
I₂ = 15.83 A
B. Bombarded by high speed electrons.
There are already electrons with potential energy in the conductor. When it is bombarded by these high speed electrons, the potential energy is changed into kinetic energy and then the electrons are emitted from the conductor.
Hope this helps.
Velocity = 90 km/h = 25 m/s
Drag coefficient, Cd = 2D/Density of air*Frontal area*sqr. velocity
Substituting,
Cd = (2*230)/(1.164*1.25*1.65*25^2) = 0.3066
Answer:
b) Document lessons learned.
Explanation:
First he should do documentation
then C
then D
then A