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Question
The device used to know the presence of charge on an object is called a/an __________.
The device used to know the presence of charge on an object is called a/an __________.
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Solution
The correct option is C electroscope
An electroscope is the instrument or device used to check the presence of charge on a body. In an uncharged electroscope, the leaves hang straight down. When a charged object touches the metal knob, electric charges travel down the rod and into the leaves. Since the charge on both leaves is the same the leaves repel each other and spread out as shown below in the figure.
An electroscope is the instrument or device used to check the presence of charge on a body. In an uncharged electroscope, the leaves hang straight down. When a charged object touches the metal knob, electric charges travel down the rod and into the leaves. Since the charge on both leaves is the same the leaves repel each other and spread out as shown below in the figure.
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