2.3 D.C circuits Flashcards
What are Parallel Circuits
Current in branches equals source current.
What is the Conservation of Charge
Total charge in circuit remains constant.
What are Series Circuits
Charges pass through all components sequentially.
What is Potential Difference in Series
Sum of potential differences equals source potential.
What is Energy Conservation
Total energy used equals energy supplied by source.
Resistors in Series
Total resistance is the sum of individual resistances.
Resistors in Parallel
Total resistance is reciprocal of sum of reciprocals.
What are Potential Dividers
Divides voltage among components based on resistance.
What is an LDR
Resistance decreases with increasing light intensity.
What are Thermistors
Resistance decreases with increasing temperature.
What is Electromotive Force (e.m.f)
Energy supplied per unit charge by the source.
What is Internal Resistance
Resistance within the source affecting potential difference.
Cells in Series
Total e.m.f is sum of individual cell e.m.fs.
What is Current (I)
Flow of electric charge in a circuit.
What is Charge (Q)
Amount of electricity flowing in a circuit.
What is Potential Difference (V)
Work done per unit charge in a circuit.
What is Energy (E)
Work done by electric charge in a circuit.
What is Resistance (R)
Opposition to current flow in a circuit.
What is Calibration
Adjusting a device to ensure accurate measurements.
What is the Voltage Divider Rule
Voltage across a resistor is proportional to its resistance.
What is Current Conservation
Total current entering a junction equals total current leaving.
What is Charge Conservation
Total charge entering a junction equals total charge leaving.
What is Reciprocal of Resistance
Used to calculate total resistance in parallel circuits.
