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Question
An electroscope is a device which is used to find whether an object is :
An electroscope is a device which is used to find whether an object is :
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Solution
The correct option is A charged.
An electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body. It was the first electrical measuring instrument.
An electroscope consists of a vertical metal rod from which two parallel strips of gold leaf hang down. The gold leaves are enclosed in a glass bottle to protect them from drafts of air.
When the metal rod is touched with a conductive charged object the gold leaves spread apart in a V. This is because the charge on the object is conducted through the metal rod to the leaves. Since they receive the same sign charge they repel each other and spread apart.
An electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body. It was the first electrical measuring instrument.
An electroscope consists of a vertical metal rod from which two parallel strips of gold leaf hang down. The gold leaves are enclosed in a glass bottle to protect them from drafts of air.
When the metal rod is touched with a conductive charged object the gold leaves spread apart in a V. This is because the charge on the object is conducted through the metal rod to the leaves. Since they receive the same sign charge they repel each other and spread apart.
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