18. The v, charge in the above figure is negative, the v2 is positive, and the Vs is also negative. The magnetic field is into the page. What is the direction of the force on the red charge? X X X X X X X X X X X X X X X X, X X X X XEX X X X X3X X XX A. B. C. UP (the page) DOWN LEFT RIGHT OUT (of the page) IN D. E. AB.

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18. The v, charge in the above figure is negative, the v2 is positive, and the
V3 is also negative. The magnetic field is into the page. What is the direction
of the force on the red charge?
X X X X X
X X X X X
X X X XX
X. X X X
XEX X X X
X3X X X X
A.
В.
C.
UP (the page)
DOWN
LEFT
RIGHT
OUT (of the page)
IN
D.
E.
AB.
Transcribed Image Text:18. The v, charge in the above figure is negative, the v2 is positive, and the V3 is also negative. The magnetic field is into the page. What is the direction of the force on the red charge? X X X X X X X X X X X X X XX X. X X X XEX X X X X3X X X X A. В. C. UP (the page) DOWN LEFT RIGHT OUT (of the page) IN D. E. AB.
Expert Solution
Step 1

The force on a charged particle in magnetic field is,

F=qv×B

Here, the charge is negative,

thus,

 

F=-Qv×B

thus the direction should be  the resultant direction of -v×B.

 

 

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