Question

In: Physics

Point charges q1 = 43 µC and q2 = −21 µC are placed 3.5 m apart....

Point charges q1 = 43 µC and q2 = −21 µC are placed 3.5 m apart. Where must q3 = 24 µC be placed (on the x-axis, in m) so that the net force on it is zero? (Assume that q1 is at x = 0 and q2 is at x = 3.5 m.)

Expert Solution

Charge is positive and charge is negative, and magnitude of

For the net force on to be zero, repulsion from charge on ( along the positive X-axis) must be equal to attraction from charge on ( along negative X-axis).

Hence the charge must be placed on the right side of charge .

Let the charge is at a distance from charge , means charge is at a distance from charge

and

Net force on charge is zero,

Solving above quadratic equation

Charge must be placed at a distance to the right of charge on the X-axis.

Charge must be placed at a distance to the right of charge ( on the X-axis.).

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genius_generous answered 2 years ago

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