Answer: A)
Explanation: when an electron is placed in a magnetic field, it experiences a force.
This force is given below as
F=qvB*sinθ
F = force experienced by charge.
q = magnitude of electronic charge
v = speed of electron
B= strength of magnetic field
θ = angle between magnetic field and velocity.
What defines the force exerted on the charge is the angle between the field and it velocity.
If magnetic field is parallel to velocity, then it means that θ=0° which means sin 0 = 0, which means
F = qvB * 0 = 0.
The charge being at rest has nothing to do with the angle between magnetic field strength and velocity.
Answer:
<h2>2000 W</h2>
Explanation:
The power of the crane can be found by using the formula
w is the workdone
t is the time taken
From the question we have
We have the final answer as
<h3>2000 W</h3>
Hope this helps you
I think the word would be increases. I don't know what the options are though.