Conductors and Insulators
About the Lecture
The lecture Conductors and Insulators by Jared Rovny, PhD is from the course Electrostatics.
Included Quiz Questions
You connect a neutral metal object (conductive) to the ground, using a copper wire. You bring a negative charge near the metal without touching it. What will happen to the charges in the object?
- The metal object becomes positively charged.
- The metal object becomes negatively charged.
- The negatively charged object becomes positively charged.
- Protons flow out of the metal object.
- No change occurs, since the negative charge does not touch the metal.
You connect a metal object to the ground and bring a negative charge nearby the object without touching it. If you disconnect the copper wire first and then remove the negative charge, what will happen to the charges in the object?
- The metal object will be positively charged.
- The metal object will be negatively charged.
- The ball will still be neutral.
- The ball will initially be neutral, but then become negatively charged.
- No charge can flow if the negative object does not touch the metal ball.
You connect a wooden object (insulator) to the ground and bring a negative charge near it without making contact with it. If you disconnect the copper wire first and then remove the negative charge, what will happen to the charges in the object?
- The object will still be neutral.
- The object will be negatively charged.
- The object will be positively charged.
- The object will initially be neutral, but then become negatively charged.
- No charge can flow if the negative object does not touch the metal object.
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Author of lecture Conductors and Insulators
Jared Rovny, PhD
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