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Statement of a problem № 3654

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A pith ball carrying a charge of 3x10^(-10) C is suspended by an insulated thread of length 50 cm. When a uniform electric field is applied in a horizon- tal direction, the ball is found to deflect by 2 cm from the vertical. If the mass of the ball is 0.5 g what is the magnitude and direction of the electric field?

Solution:
A pith ball carrying a charge of 3x10^(-10) C is suspended by an insulated threa

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