plastic rod is rubbed with a piece of animal fur. The plastic rod acquires a negative charge during this process. Which is TRUE about the charge on the piece of fur?*1 pointIt acquires a positive charge but less in magnitude than the rod.It acquires a positive charge with the same magnitude as the rod.It acquires a positive charge but is greater in magnitude than the rod.It acquires a negative charge but is greater in magnitude than the rod.Which graph represents the relationship between the potential difference applied to a copper wire and the resulting current in the wire at constant temperature?*
Question
plastic rod is rubbed with a piece of animal fur. The plastic rod acquires a negative charge during this process. Which is TRUE about the charge on the piece of fur?1 pointIt acquires a positive charge but less in magnitude than the rod.It acquires a positive charge with the same magnitude as the rod.It acquires a positive charge but is greater in magnitude than the rod.It acquires a negative charge but is greater in magnitude than the rod.Which graph represents the relationship between the potential difference applied to a copper wire and the resulting current in the wire at constant temperature?
Solution
The piece of fur acquires a positive charge with the same magnitude as the rod. This is due to the law of conservation of charge which states that the total charge in an isolated system remains constant. So, when the plastic rod gains electrons (negative charge), the fur loses the same amount of electrons, thus gaining an equal amount of positive charge.
As for the graph representing the relationship between the potential difference applied to a copper wire and the resulting current in the wire at constant temperature, it would be a straight line passing through the origin. This is because Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points, and this relationship is linear at a constant temperature.
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