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Questions and Answers
What primarily constitutes the flow of current in electrical circuits?
What primarily constitutes the flow of current in electrical circuits?
- Positively charged protons
- Neutrally charged neutrons
- Negatively charged electrons (correct)
- Thermal energy
What is the primary source of energy transfer in electrical circuits?
What is the primary source of energy transfer in electrical circuits?
- Thermal energy from the environment
- Chemical energy from batteries or mains (correct)
- Mechanical power
- Nuclear energy
What role do moving electrons play in an electrical circuit?
What role do moving electrons play in an electrical circuit?
- Creating magnetic fields around the circuit
- Storing energy within the conductors
- Decreasing resistance in the circuit
- Transferring energy to devices (correct)
In an electrical circuit, the device receiving energy from the current, like a light bulb, is primarily powered by?
In an electrical circuit, the device receiving energy from the current, like a light bulb, is primarily powered by?
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Which of the following statements is incorrect regarding electrical current?
Which of the following statements is incorrect regarding electrical current?
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Study Notes
Current in Electrical Circuits
- Current is defined as the flow of negatively charged electrons.
- Electrons transfer energy from power sources like batteries or mains.
- Energy transferred can power electrical devices, such as light bulbs.
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