If the vertical posts supporting these wires divide the lines into straight 19.0 m segments, what magnetic force does each segme
nt exert on the other?
1 answer:
Answer:
Complete question is:
Two high-current transmission lines carry currents of 29.0 A and 78.0 A in the same direction and are suspended parallel to each other 38.0 cm apart.
Part A.) If the vertical posts supporting these wires divide the lines into straight 20.0m segments, what magnetic force does each segment exert on the other? (answer in F= ? N)
Part B.) Is the force found in part (A) attractive or repulsive?
Answer: 0.024 N attraction force is being applied.
Explanation:
See attached picture.
You might be interested in
Answer:
The light bends away from the normal
Explanation:
We can solve the problem by using Snell's law:
where:
is the index of refraction of the first medium
is the index of refraction of the second medium
is the angle of incidence (angle between the incoming ray and the normal to the interface)
is the angle of refraction (angle between the outcoming ray and the normal to the interface)
We can rearrange the equation as
In this problem, light travels from an optically denser medium to an optically rarer medium, so
Therefore, the term is greater than 1, so
which means that the angle of refraction is greater than the angle of incidence, and so the light will bend away from the normal.
The momentum p of a moving particle is the product between its mass, m, and tis velocity, v:
In our problem, we know
and 
, and using the relationship mentioned above, we can find the mass m of the particle:
In our problem, we know