The Figure Shows Two Tiny 5

question 71

Multiple Choice

The figure shows two tiny 5.0-g spheres suspended from very light 1.0-m-long threads.The spheres repel each other after each one is given the same positive charge and hang at rest when θ = 4.1°.What is the charge on each sphere? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)22 nC
• B)89 nC
• C)360 nC
• D)180 nC
• E)45 nC

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Definitions:

Discharged Batteries

Batteries that have been depleted of their stored electrical energy.

Starter Insulated Terminal

A component of the starter system designed to protect the electrical connections from short circuits or shocks.

Carbon Pile

A high-current dynamic battery testing instrument. A high-current path is established through a stack of clamped carbon plates and voltage measured during a timed test run. See Load Test.

Load Test

A common battery capacity test performed by connecting a carbon pile load tester across the battery or battery bank terminals. Also known as a capacity test.