1. How does resistance change if the length of the wire is increased? a. no change b. decreased c. increased d. cannot be determined

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Q: How does resistance change if the length of the wire is increase? a. no change b. decreased c.…

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Q: 4.75 02. What is the emf of the ideal battery? E R₁ www R₂ R₂ www R₁ R₂ R6

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.