True test of charging is...?
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In agriculture, grazing is a method of animal husbandry whereby domestic livestock are allowed outdoors to consume wild vegetations in order to convert grass and other forages into meat, milk, wool and other animal products, often on land unsuitable for arable farming.
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Attraction gives no answer. If the test charge is repulsed, one has to try with a positive and a negative test charge, but once repulsion is established, then it is sure that the surface of the object is charged with a like charge.
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