A Point Charge Q of Mass 8

question 21

Multiple Choice

A point charge Q of mass 8.50 g hangs from the horizontal ceiling by a light 25.0-cm thread. When a horizontal electric field of magnitude 1750 N/C is turned on, the charge hangs away from the vertical as shown in the figure. The magnitude of Q is closest to

• A) 27.5 µC.
• B) 47.6 µC.
• C) 55.0 µC.
• D) 3.0 µC.
• E) 3.5 µC.

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