Charged Ring: in the Figure, a Ring 0

question 53

Multiple Choice

Charged ring: In the figure, a ring 0.71 m in radius carries a charge of + 580 nC uniformly distributed over it. A point charge Q is placed at the center of the ring. The electric field is equal to zero at field point P, which is on the axis of the ring, and 0.73 m from its center. (ε₀ = 8.85 × 10^-12 C²/N ∙ m²) The point charge Q is closest to

• A) -210.
• B) -300.
• C) -420.
• D) 210.
• E) 300.

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Definitions:

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A condition, typically in children, characterized by involuntary urination, especially while asleep.

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A condition causing disturbances in sleep due to breathing interruptions or minimal breathing episodes during sleep.

Jerks Awake

A sudden, involuntary muscle spasm that often occurs just as a person is falling asleep, startling them awake.

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An involuntary response to a lack of oxygen, characterized by sudden, forceful inhalations to increase airflow into the lungs.