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Which has more resistance, a copper wire with length 5 m and area 25 m2 or a copper wire with length 10 m and area 50m2 ? ( r = rho l/a).
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Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
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Which has more resistance, a copper wire with length 5 m and area 25 m2 or a copper wire with length...
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