Examkin

Question

Difficulty: MediumElectrical Current and Electron Flow

In an external circuit connected to a direct-current (DC) power source, electron flow theory states that negative charge carriers travel from the positive terminal to the negative terminal.

Answer: Answer

Answer

False
Electron flow theory describes the physical movement of negatively charged electrons, which travel from the negative terminal through the external circuit load toward the positive terminal. Traveling from positive to negative describes conventional current flow.

Step-by-Step Solution

1
Identify the electrical current model referenced in the statement.
The statement explicitly cites 'electron flow theory' in an external circuit.
Electronics distinguishes between electron flow theory and conventional current flow theory.
2
Determine the physical direction of electrons based on fundamental electrostatic laws.
Electrons possess a negative charge, causing them to be repelled by the negative terminal and drawn toward the positive terminal.
Like charges repel each other while opposite charges attract.
3
Evaluate the accuracy of the statement's claimed direction.
Movement from positive to negative defines conventional current, making the claim regarding electron flow theory false.
Electron flow moves from negative to positive externally.

Key Concept

Direction of Electron Flow vs. Conventional Current
Estimated Time:35s
Rate this question

Topics

Electrical Current and Electron Flow

More questions from this topic