A Plastic Rod Is Charged Up by Rubbing a Wool

question 477

Multiple Choice

A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. It is allowed to touch the sphere for a few seconds, and then
Is separated from the sphere by a small distance. After the rod is separated, the rod

• A) is repelled by the sphere.
• B) feels no force due to the sphere.
• C) is attracted to the sphere.

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Definitions:

Lenin's Death

Refers to the death of Vladimir Lenin in 1924, which marked the end of his leadership of the Soviet Union and initiated a struggle for power.

Tsarina Alexandra

The last Empress of Russia, wife of Tsar Nicholas II, known for her influence at court and connection to the mystic Rasputin.

Russian People

Citizens or nationals of Russia, a transcontinental country located in Eastern Europe and Northern Asia, known for its rich history, cultural heritage, and diverse ethnic groups.

Bolsheviks

A faction of the Russian social-democratic movement that split from the Menshevik faction and, led by Lenin, seized control of Russia in the October Revolution of 1917.