Suppose that you were looking down the barrel of a proton gun, as shown in the d

Question

Suppose that you were looking down the barrel of a proton gun, as shown in the diagram below.

As the proton (in the center of the diagram) moves toward you with constant velocity, v, it creates a B-field according to the right-hand rule. Consider how the B-field would change if the gun instead shot an electron with the same v.

What would happen to the strength of B? Choose one

-The magnetic field strength would strengthen.

-The magnetic field strength would remain the same.  

-The magnetic field strength would weaken.

In what direction would the new B field point? Choose one

counter-clockwise

straight up  

  clockwise

to the left

straight down

into the screen

out of the screen

to the right

Explanation / Answer

the megnetic field strength will remain same because both have same charge and current = q/time

so

The magnetic field strength would remain the same.

B)

clockwise

to the right

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