Charge A, +6.00 C, is positioned at the origin of a coordinate system. Charge B,

Question

Charge A, +6.00 C, is positioned at the origin of a coordinate system. Charge B, -4.00 C, is fixed on the x axis at x = 3.00 m.

1)Determine the magnitude and direction of the force that charge B exerts on charge A. Enter a positive value if the force acts in the +x direction and a negative value if the force acts in the -x direction. (Express your answer to three significant figures.)

2)What is the magnitude and direction of the force that charge A exerts on charge B? Enter a positive value if the force acts in the +x direction and a negative value if the force acts in the -x direction. (Express your answer to three significant figures.)

Explanation / Answer

a) The force due to B on charge A,

Fba = KQq/R^2 = 9*10^9*6*4*10^-12/3^2 = 0.024 N

This force is attraction force then this will be towards +ve axis and the magnitude will be 0.024 N

b) The force due to A on charge B, will be having equal magnitude and opposite in direction.

So the force Fba = -0.024 N

Magnitude = 0.024 N

direction = -x axis.

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