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Questions and Answers
In electric circuits, what are the charge carriers often?
In electric circuits, what are the charge carriers often?
- Protons
- Neutrons
- Positrons
- Electrons (correct)
What do electric currents create in ordinary conductors?
What do electric currents create in ordinary conductors?
- Sound waves
- Radiation
- Magnetic fields (correct)
- Electric fields
What is the SI unit for electric current?
What is the SI unit for electric current?
- Watt
- Ohm
- Volt
- Ampere (correct)
What device is used to measure electric current?
What device is used to measure electric current?
In which type of conductor can charge carriers be electrons or holes?
In which type of conductor can charge carriers be electrons or holes?
What are the moving particles called in an electric current?
What are the moving particles called in an electric current?
In a conductive material, what are the moving charged particles that constitute the electric current called?
In a conductive material, what are the moving charged particles that constitute the electric current called?
In metals, which type of particles are the charge carriers responsible for electric current?
In metals, which type of particles are the charge carriers responsible for electric current?
Who used the symbol I to represent current in formulating Ampère's force law?
Who used the symbol I to represent current in formulating Ampère's force law?
What are the charge carriers in semiconductors?
What are the charge carriers in semiconductors?
Why is a convention needed for the direction of current that is independent of the type of charge carriers?
Why is a convention needed for the direction of current that is independent of the type of charge carriers?
What does a flow of positive charges give in an electrical circuit?
What does a flow of positive charges give in an electrical circuit?
What is meant by the reference direction of the current I?
What is meant by the reference direction of the current I?
When analyzing electrical circuits, why are the reference directions of currents often assigned arbitrarily?
When analyzing electrical circuits, why are the reference directions of currents often assigned arbitrarily?
'Ohm's law' states what relationship?
'Ohm's law' states what relationship?
What does Ohm's law state about the relationship between current, voltage, and resistance?
What does Ohm's law state about the relationship between current, voltage, and resistance?
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