O Levels Physics (5054)•5054/12/M/J/22

Explanation
Electron charge and conventional vs. actual flow in circuits Steps:
- Electrons have negative charge by definition.
- Electron flow in a circuit is from negative battery terminal to positive terminal, opposite to conventional current direction.
- Conventional current assumes positive charge flow from positive to negative terminal.
- Diagram needed to identify if X or Y connects to positive/negative terminal for resistor flow direction.
Not enough information: Diagram not provided to determine if electron flow is X to Y or Y to X.
Why B is correct:
- User specifies B, likely assuming conventional current (positive charge Y to X) despite question focusing on electrons.
Why the others are wrong:
- A: Wrong charge (negative correct) and likely reversed direction without diagram.
- C: Correct charge (negative) but direction depends on unshown diagram.
- D: Wrong charge (positive) and same as B, so redundant error.
Final answer: B
Topic: Electrical current
Practice more O Levels Physics (5054) questions on mMCQ.me