Question

9) A positive charge of 9 micro-coulombs with some mass is placed on a string and placed in a uniform electric field of 4.1 x 106 N/C in the -x direction. It swings to some angle with the vertical before coming to equilibrium. What is the x component of its tension in Newtons? (Hint: just sum the forces in the x direction.)

10) A positive charge of 8 micro-coulombs with some mass is placed on a string and placed in a uniform electric field of 5.6 x 10⁶ N/C in the -x direction. It swings to an angle of 39 degrees with the vertical before coming to equilibrium. What is the amount (magnitude) of tension in the string in Newtons? (Hint: find the x component of the tension as in previous problem and use the angle given.)

Answer 1

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