A point charge (m=1.0 gram) at the end of an insulating
Chapter 16, Problem 57GP(choose chapter or problem)
A point charge gram at the end of an insulating cord of length is observed to be in equilibrium in a uniform horizontal electric field of , when the pendulum's position is as shown in Fig. , with the charge above the lowest charge above the lowest (vertical) position. If the field points to the right in Fig. , determine the magnitude and sign of the point charge.
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