A positive charge Q is on the y-axis at a distance a from the origin, and anothe

Question

A positive charge Q is on the y-axis at a distance a from the origin, and another positive charge q is on the x-axis at a distance b from the origin.

(a) For what value(s) of b is the x-component of the force on q a minimum? (Use any variable or symbol stated above as necessary. Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.)
b1 = ..........
b2 = ..........

(b) For what value(s) of b is the x-component of the force on q a maximum? (Use any variable or symbol stated above as necessary. Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.)
b1 = .........
b2 = .........

Explanation / Answer

force on the charges is given by F = kq1q2/r^2 so to have large force distance must as low as poss and magnitude of charges must as high as possible and vice versa

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