6. -12 points My Notes Ask Your Teachen The figure shows the net force experienc

Question

6. -12 points My Notes Ask Your Teachen The figure shows the net force experienced by a positive test charge located at the center of the diagram. The force comes from two nearby charged balls, one (in red) with a charge of Q and one (in green) with an unknown charge. (a) Choose the two correct statements about the sign and magnitude of the charge on the green ball The green ball has a positive charge. The green ball has a negative charge There is not enough information here to determine the sign of the charge on the green ball The magnitude of the charge on the green ball is less than Q. The magnitude of the charge on the green ball is equal to Q The magnitude of the charge on the green ball is greater than Q. (b) If -2.80 microcoulombs, determine the charge (sign and magnitude) on the green ball

Explanation / Answer

a) as the electric field due to green is towards negative x direction

whicle is away from the green ball

and the magnitude of electric field due to red ball and green ball is same while the green ball is closer

hence , the correct options are

the green ball has a positive charge

the magnitude of charge on the green is less than Q

b)

Q = 2.8 uC

Qgreen = 2.8/2^2

Qgreen = 0.70 uC

the charge on the green ball is 0.70 uC

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