Electricity Basics Quiz

Electricity Basics

• Electricity is a form of energy resulting from the movement of charged particles, such as electrons.
• It is a secondary energy source, derived from other energy sources like coal, natural gas, or nuclear reactions.

Electric Charge

• Electric charge is a fundamental property of matter, measured in coulombs (C).
• There are two types of electric charge:
  • Positive charge (protons)
  • Negative charge (electrons)

Electric Current

• Electric current is the flow of electrons, measured in amperes (A).
• It is the movement of charged particles, typically electrons, through a conductor.
• Current flow is from negative to positive terminals.

Electric Circuit

• An electric circuit is a path through which electric current flows.
• It consists of:
  • A power source (e.g., battery)
  • A conductor (e.g., wire)
  • A load (e.g., light bulb)
  • A switch (optional)

Electric Voltage

• Electric voltage is the potential difference between two points, measured in volts (V).
• It is the "pressure" that drives electric current.
• Voltage is the force that pushes electric charge through a circuit.

Resistance

• Resistance is the opposition to electric current, measured in ohms (Ω).
• It depends on the material, length, and cross-sectional area of the conductor.
• Higher resistance reduces electric current.

Ohm's Law

• Ohm's Law states: V = I × R
  • Voltage (V) is equal to current (I) multiplied by resistance (R)
• This law relates voltage, current, and resistance in a circuit.

Electric Power

• Electric power is the rate at which electric energy is transferred, measured in watts (W).
• It is calculated by: P = V × I
  • Power (P) is equal to voltage (V) multiplied by current (I)

Electricity Basics

• Electricity is a form of energy resulting from the movement of charged particles, such as electrons.
• It is a secondary energy source, derived from other energy sources like coal, natural gas, or nuclear reactions.

Electric Charge

• Electric charge is a fundamental property of matter, measured in coulombs (C).
• There are two types of electric charge:
  • Positive charge (protons)
  • Negative charge (electrons)

Electric Current

• Electric current is the flow of electrons, measured in amperes (A).
• It is the movement of charged particles, typically electrons, through a conductor.
• Current flow is from negative to positive terminals.

Electric Circuit

• An electric circuit is a path through which electric current flows.
• A circuit consists of:
  • A power source (e.g., battery)
  • A conductor (e.g., wire)
  • A load (e.g., light bulb)
  • A switch (optional)

Electric Voltage

• Electric voltage is the potential difference between two points, measured in volts (V).
• It is the "pressure" that drives electric current.
• Voltage is the force that pushes electric charge through a circuit.

Resistance

• Resistance is the opposition to electric current, measured in ohms (Ω).
• It depends on the material, length, and cross-sectional area of the conductor.
• Higher resistance reduces electric current.

Ohm's Law

• Ohm's Law states: V = I × R
• This law relates voltage, current, and resistance in a circuit.

Electric Power

• Electric power is the rate at which electric energy is transferred, measured in watts (W).
• It is calculated by: P = V × I
• Power is the rate of electric energy transfer.