LessonPhysics and Chemistry · Active Dipole Characteristics

Active Dipole Characteristics

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This lesson brings together the PDF, study notes and chapter flow so you can revise Active Dipole Characteristics without losing the thread.

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Electric voltage and current

Electric voltage (U)

Potential difference between two points. Unit: Volt (V). UAB = VA − VB.

UAB = VA - VB

Current intensity (I)

I = Q / t. Charge passing per unit time. Unit: Ampere (A).

I = Q / t (A)

Ohm's law

U = R·I for an ohmic conductor. R in Ohm (Ω).

U = R \cdot I

Electric circuits

Resistors in series

Req = R₁ + R₂ + … The same current flows through all resistors.

Req = R1 + R2 + \ldots

Resistors in parallel

1/Req = 1/R₁ + 1/R₂ + … Same voltage across all resistors.

1/Req = 1/R1 + 1/R2 + \ldots

Kirchhoff's laws

Node law: ΣI in = ΣI out. Mesh law: ΣU = 0 around a loop.

nœuds: ΣIe = ΣIs mailles: ΣU = 0

Electric power (P)

P = U·I = R·I² = U²/R. Unit: Watt (W).

P = U \cdot I = R \cdot I^{2} = U^{2}/R

Lab Works

Experiment 1 - General Electricity

Lab protocol.

Experiment 2 - General Electricity

Lab protocol.

Experiment 3 - General Electricity

Lab protocol.

Experiment 4 - General Electricity

Lab protocol.

Experiment 5 - General Electricity

Lab protocol.

Applications

Application 1 - General Electricity

Industrial example.

Application 2 - General Electricity

Industrial example.

Application 3 - General Electricity

Industrial example.

Application 4 - General Electricity

Industrial example.

Application 5 - General Electricity

Industrial example.

Correction

Solution 1 - General Electricity

Explanation.

Solution 2 - General Electricity

Explanation.

Solution 3 - General Electricity

Explanation.

Solution 4 - General Electricity

Explanation.

Solution 5 - General Electricity

Explanation.

Solution 6 - General Electricity

Explanation.

Solution 7 - General Electricity

Explanation.

Solution 8 - General Electricity

Explanation.

Solution 9 - General Electricity

Explanation.

Solution 10 - General Electricity

Explanation.

Physics-Chemistry references

Scientific method

Read data, identify the system, choose the model, write relations with SI units, then check the order of magnitude.

Exam focus

Precise definitions, labelled diagrams, unit conversions, document analysis, and justified numerical results.

Electricity

Core quantities

Voltage U in volts, current I in amperes, resistance R in ohms, power P in watts.

U = R x I

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LessonPhysics and Chemistry · Active Dipole Characteristics

Active Dipole Characteristics

Resource 1 of 2

Arrow keys ← → to navigate, B to bookmark.

Lesson overview

Read, revise, then move to the next lesson

This lesson brings together the PDF, study notes and chapter flow so you can revise Active Dipole Characteristics without losing the thread.

Quick links

Chapter page Subject page Ask Ma3lo about this lesson

Electric voltage and current

Electric voltage (U)

Potential difference between two points. Unit: Volt (V). UAB = VA − VB.

UAB = VA - VB

Current intensity (I)

I = Q / t. Charge passing per unit time. Unit: Ampere (A).

I = Q / t (A)

Ohm's law

U = R·I for an ohmic conductor. R in Ohm (Ω).

U = R \cdot I

Electric circuits

Resistors in series

Req = R₁ + R₂ + … The same current flows through all resistors.

Req = R1 + R2 + \ldots

Resistors in parallel

1/Req = 1/R₁ + 1/R₂ + … Same voltage across all resistors.

1/Req = 1/R1 + 1/R2 + \ldots

Kirchhoff's laws

Node law: ΣI in = ΣI out. Mesh law: ΣU = 0 around a loop.

nœuds: ΣIe = ΣIs mailles: ΣU = 0

Electric power (P)

P = U·I = R·I² = U²/R. Unit: Watt (W).

P = U \cdot I = R \cdot I^{2} = U^{2}/R

Lab Works

Experiment 1 - General Electricity

Lab protocol.

Experiment 2 - General Electricity

Lab protocol.

Experiment 3 - General Electricity

Lab protocol.

Experiment 4 - General Electricity

Lab protocol.

Experiment 5 - General Electricity

Lab protocol.

Applications

Application 1 - General Electricity

Industrial example.

Application 2 - General Electricity

Industrial example.

Application 3 - General Electricity

Industrial example.

Application 4 - General Electricity

Industrial example.

Application 5 - General Electricity

Industrial example.

Correction

Solution 1 - General Electricity

Explanation.

Solution 2 - General Electricity

Explanation.

Solution 3 - General Electricity

Explanation.

Solution 4 - General Electricity

Explanation.

Solution 5 - General Electricity

Explanation.

Solution 6 - General Electricity

Explanation.

Solution 7 - General Electricity

Explanation.

Solution 8 - General Electricity

Explanation.

Solution 9 - General Electricity

Explanation.

Solution 10 - General Electricity

Explanation.

Physics-Chemistry references

Scientific method

Read data, identify the system, choose the model, write relations with SI units, then check the order of magnitude.

Exam focus

Precise definitions, labelled diagrams, unit conversions, document analysis, and justified numerical results.

Electricity

Core quantities

Voltage U in volts, current I in amperes, resistance R in ohms, power P in watts.

U = R x I