Basics of Electricity

Basics of Electricity

• Electricity is the flow of electrons from one point to another.
• It is a form of energy that can be transferred from one point to another through various mediums, such as wires.

Key Concepts

• Voltage (V): The potential difference between two points, measured in volts (V).
• Current (I): The flow of electrons, measured in amperes (A).
• Resistance (R): The opposition to the flow of electrons, measured in ohms (Ω).
• Power (P): The rate at which electricity is used or produced, measured in watts (W).

Ohm's Law

• I = V/R: Current is equal to voltage divided by resistance.
• V = I*R: Voltage is equal to current multiplied by resistance.
• R = V/I: Resistance is equal to voltage divided by current.

Electric Circuits

• Series Circuit: A circuit in which components are connected one after the other, and the current flows through each component in sequence.
• Parallel Circuit: A circuit in which components are connected between the same two points, and the voltage is the same across each component.

Types of Electric Current

• Alternating Current (AC): A current that periodically reverses direction, used in household power distribution.
• Direct Current (DC): A current that flows in one direction only, used in electronic devices.

Safety Precautions

• Insulation: Using materials to prevent the flow of electricity and reduce the risk of shock.
• Grounding: Connecting an electric circuit to the earth to prevent the buildup of excessive voltage.
• Fuses and Circuit Breakers: Devices that interrupt the flow of electricity when it exceeds a certain level, preventing overheating and fires.

Basics of Electricity

• Electricity is the flow of electrons from one point to another, a form of energy that can be transferred through mediums like wires.

Key Concepts

• Voltage (V) is the potential difference between two points, measured in volts (V).
• Current (I) is the flow of electrons, measured in amperes (A).
• Resistance (R) is the opposition to the flow of electrons, measured in ohms (Ω).
• Power (P) is the rate at which electricity is used or produced, measured in watts (W).

Ohm's Law

• Current is equal to voltage divided by resistance: I = V/R.
• Voltage is equal to current multiplied by resistance: V = I*R.
• Resistance is equal to voltage divided by current: R = V/I.

Electric Circuits

• A series circuit is a circuit where components are connected one after the other, and the current flows through each component in sequence.
• A parallel circuit is a circuit where components are connected between the same two points, and the voltage is the same across each component.

Types of Electric Current

• Alternating current (AC) is a current that periodically reverses direction, used in household power distribution.
• Direct current (DC) is a current that flows in one direction only, used in electronic devices.

Safety Precautions

• Insulation involves using materials to prevent the flow of electricity and reduce the risk of shock.
• Grounding involves connecting an electric circuit to the earth to prevent the buildup of excessive voltage.
• Fuses and circuit breakers are devices that interrupt the flow of electricity when it exceeds a certain level, preventing overheating and fires.