University Physics II · Current, Resistance, and DC Circuits · 6.01
Electric current and charge flow
Average and instantaneous current, sign conventions, conventional current, charge conservation, and current through a cross-section.
Course-map guide · not a complete lesson or simulationScope & orientation
What this subsection covers
Average and instantaneous current, sign conventions, conventional current, charge conservation, and current through a cross-section.A strong response uses circuit diagrams and states where the model stops being reliable.
Reasoning checklist
Evidence, assumptions and limits
Assumptions to state
State the system, observable, approximation, and conditions held fixed before using a model.
Evidence to collect
Over what voltage and temperature range is a component adequately ohmic?
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Over what voltage and temperature range is a component adequately ohmic? Useful evidence includes current-voltage data, a fitted slope, residuals, temperature observations, uncertainty, and a declared validity range.
Limits to state
This GioPhysics course map is an adaptable learning sequence, not academic credit, accreditation, or a universal university syllabus.
Read the complete note
This GioPhysics course map is an adaptable learning sequence, not academic credit, accreditation, or a universal university syllabus. Departments may redistribute weeks, laboratory hours, optics, or the modern-physics survey to match local requirements. This GioPhysics course map is an adaptable learning sequence, not academic credit, accreditation, or a universal university syllabus. Departments may redistribute weeks, laboratory hours, optics, or the modern-physics survey to match local requirements. Thermal physics appears as an unnumbered institutional extension: some universities assess it within Physics II, while others teach it in a separate course, so include the thermal extensions only where the local syllabus requires them. A result should be checked against units, signs, limiting cases, and the conditions under which its model was derived.
Diagram & examples
Work the claim before choosing an equation
Interactive concept map
Follow the model from claim to evidence.
Average and instantaneous current, sign conventions, conventional current, charge conservation, and current through a cross-section.
Model, evidence, and boundary
What is the strongest test of a claim about Electric current and charge flow?
Over what voltage and temperature range is a component adequately ohmic? Useful evidence includes current-voltage data, a fitted slope, residuals, temperature observations, uncertainty, and a declared validity range.
modelModel, evidence, and boundary turns the stated idea into a representation that can make a prediction.
Example questions
Try the reasoning before revealing the structure.
What is the strongest test of a claim about Electric current and charge flow?
Quick check
Test the reasoning, not recall
What is the strongest test of a claim about Electric current and charge flow?
Choose an answer to test the model.