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Questions and Answers
What is the flow of electric charge that does not change direction with time called?
What is the flow of electric charge that does not change direction with time called?
- Alternating current (AC)
- Direct current (DC) (correct)
- Dynamic current
- Static current
In a circuit, what is the unit of electric current?
In a circuit, what is the unit of electric current?
- Ohm
- Volt
- Ampere (correct)
- Coulomb
What property of a material is measured by its resistance to the flow of electric current?
What property of a material is measured by its resistance to the flow of electric current?
- Permeability
- Resistivity (correct)
- Conductivity
- Reluctance
What law states that the current flowing through a conductor is directly proportional to the voltage across it, provided the temperature remains constant?
What law states that the current flowing through a conductor is directly proportional to the voltage across it, provided the temperature remains constant?
Flashcards
Direct Current (DC)
Direct Current (DC)
Electric current that flows in one direction.
Unit of Electric Current
Unit of Electric Current
Ampere (A)
Resistivity
Resistivity
Material's opposition to current flow.
Ohm's Law
Ohm's Law
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Study Notes
Electric Charge and Current
- Electric charge that does not change direction with time is called Direct Current (DC).
- In a circuit, the unit of electric current is Ampere (A).
Material Properties
- The property of a material measured by its resistance to the flow of electric current is Conductivity.
Ohm's Law
- Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it, provided the temperature remains constant.
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