Podcast
Questions and Answers
What happens to the number of electrons travelling in any direction in a conductor?
What happens to the number of electrons travelling in any direction in a conductor?
- They tend to accumulate on the other side
- They are not influenced by the electric field
- They tend to accumulate on one side
- They remain equal in any direction (correct)
In the scenario described, when will there be a current in the conductor?
In the scenario described, when will there be a current in the conductor?
- When there is no electric field applied
- When the electrons are stationary
- For a very short while when electrons move to neutralize the charges (correct)
- When the positive charge on one disc is greater than the negative charge on the other disc
What results in the creation of an electric field in the conductor?
What results in the creation of an electric field in the conductor?
- Presence of positive and negative charges on opposite discs (correct)
- Difference in electron and proton numbers
- Existence of neutral charges only
- Movement of positive charges
How does a steady electric field differ from a temporary one in a conductor?
How does a steady electric field differ from a temporary one in a conductor?
What can be employed to maintain a steady electric field in a conductor?
What can be employed to maintain a steady electric field in a conductor?
What is responsible for accelerating electrons in a conductor when an electric field is applied?
What is responsible for accelerating electrons in a conductor when an electric field is applied?
What is the relationship described by Ohm's law?
What is the relationship described by Ohm's law?
What does the symbol W represent in the context of resistance?
What does the symbol W represent in the context of resistance?
How does resistance R depend on the dimensions of a conductor?
How does resistance R depend on the dimensions of a conductor?
If two identical slabs are placed side by side, how does the resistance change?
If two identical slabs are placed side by side, how does the resistance change?
What was G.S. Ohm's contribution to electrical science in 1828?
What was G.S. Ohm's contribution to electrical science in 1828?
What is the SI unit for resistance?
What is the SI unit for resistance?
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