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1. Compared to insulators, metals are better conductors of electricity because metals contain more free .2. An electric current in a metal consists of moving .3. As the temperature of a metallic conductor increases, its resistance usually .4. If the diameter of a wire were to increase, its electrical resistance would .5. If the potential difference across a 30.-ohm resistor is 10. volts, what is the current through the resistor? ? A6. If the voltage across a 12-ohm resistor is 4.0 volts, the current throught the resistor is ? A.7. Which quantity must be the same for each component in any series circuit? ? 8. Which quantity must be the same for each component in any parallel circuit? ?
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