Answer:
Correct answer: F = 0 N
Explanation:
All three elementary charges are in the same straight line or direction.
Since the electron and proton are opposite charged, their force is attractive and directed toward the electron.
The forces are of the same intensity-magnitude and opposite directions and are canceled, so the resultant- net force by which the electrons act on the proton is zero.
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B) The amount of work done
Answer: a. the magnetic field surrounding a long, straight wire
Explanation:
The Biot-Savart law was formulated by Jean Baptiste Biot and Felix Savart and describes how a magnetic field is generated by a stationary electric current.
In other words:
The law formulated by Biot and Savart relates the magnetic fields with the currents that create them.
Therefore, the correct option is a.
The magnetic field surrounding a long, straight wire.
