Ohm's Law

Learn about Ohm's Law and its application in electrical circuits.

Sample Cards

Ohm's Law

The law that defines the relationship between voltage, current, and resistance in an electrical c...

Ohm (Ω)

The unit of measurement for electrical resistance.

I = V / R

The formula to calculate current (I) using voltage (V) and resistance (R).

V = I × R

The formula to calculate voltage (V) using current (I) and resistance (R).

R = V / I

The formula to calculate resistance (R) using voltage (V) and current (I).

The Concept of Ohm’s Law in Electrical Work

Ohm's Law is fundamental to understanding electrical circuits, it allows for calculations of volt...

Voltage (V)

The potential difference in charge between two points in a circuit, measured in volts.

Current (I)

The rate at which charge is flowing, measured in amperes.

Ohm's Law Flashcards

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Ohm's Law

The law that defines the relationship between voltage, current, and resistance in an electrical circuit.

The law that defines the relationship between voltage, current, and resistance in an electrical circuit.

Ohm's Law

Ohm (Ω)

The unit of measurement for electrical resistance.

The unit of measurement for electrical resistance.

Ohm (Ω)

I = V / R

The formula to calculate current (I) using voltage (V) and resistance (R).

The formula to calculate current (I) using voltage (V) and resistance (R).

I = V / R

V = I × R

The formula to calculate voltage (V) using current (I) and resistance (R).

The formula to calculate voltage (V) using current (I) and resistance (R).

V = I × R

R = V / I

The formula to calculate resistance (R) using voltage (V) and current (I).

The formula to calculate resistance (R) using voltage (V) and current (I).

R = V / I

The Concept of Ohm’s Law in Electrical Work

Ohm's Law is fundamental to understanding electrical circuits, it allows for calculations of voltage, current and resistance.

Ohm's Law is fundamental to understanding electrical circuits, it allows for calculations of voltage, current and resistance.

The Concept of Ohm’s Law in Electrical Work

Voltage (V)

The potential difference in charge between two points in a circuit, measured in volts.

The potential difference in charge between two points in a circuit, measured in volts.

Voltage (V)

Current (I)

The rate at which charge is flowing, measured in amperes.

The rate at which charge is flowing, measured in amperes.

Current (I)

Resistance (R)

Opposition to the flow of electric current, resulting in energy being lost as heat, measured in ohms.

Opposition to the flow of electric current, resulting in energy being lost as heat, measured in ohms.

Resistance (R)

P = V × I

The power law, it calculates power (P) using voltage (V) and current (I).

The power law, it calculates power (P) using voltage (V) and current (I).

P = V × I

Electrical Load

The component in an electrical circuit that consumes electric power.

The component in an electrical circuit that consumes electric power.

Electrical Load

Resistance Effect on Current

As resistance increases, the current in the circuit decreases if voltage remains constant.

As resistance increases, the current in the circuit decreases if voltage remains constant.

Resistance Effect on Current

Understanding Ohm's Law in Circuit Design

Ohm's Law allows electricians and engineers to determine the best components for a specific circuit design.

Ohm's Law allows electricians and engineers to determine the best components for a specific circuit design.

Understanding Ohm's Law in Circuit Design

Series and Parallel Circuits and Ohm’s Law

In series circuits, current is constant and voltage varies. In parallel circuits, voltage is constant and current varies.

In series circuits, current is constant and voltage varies. In parallel circuits, voltage is constant and current varies.

Series and Parallel Circuits and Ohm’s Law

Conductors and Insulators in Electronic Resistance

Conductors have low resistance while insulators have high resistance.

Conductors have low resistance while insulators have high resistance.

Conductors and Insulators in Electronic Resistance

Impact of Temperature on Resistance

Resistance of most materials increases with temperature. In semiconductors, resistance decreases with temperature.

Resistance of most materials increases with temperature. In semiconductors, resistance decreases with temperature.

Impact of Temperature on Resistance

Ohm's Law Applications in Electrical Wiring

Ohm's law helps to calculate current, voltage, and resistance to install correct wire sizes in electrical units.

Ohm's law helps to calculate current, voltage, and resistance to install correct wire sizes in electrical units.

Ohm's Law Applications in Electrical Wiring

Multimeters Measure Voltage, Current, and Resistance

Multimeters are used for troubleshooting and measuring electrical quantities in a circuit based on Ohm's Law.

Multimeters are used for troubleshooting and measuring electrical quantities in a circuit based on Ohm's Law.

Multimeters Measure Voltage, Current, and Resistance

Voltage Drops in Circuits

Voltage drop depends on wire size, wire type, and the distance electricity has to travel.

Voltage drop depends on wire size, wire type, and the distance electricity has to travel.

Voltage Drops in Circuits

Importance of Proper Grounding

Proper grounding ensures safety, prevents voltage spikes, and maintains voltage quality.

Proper grounding ensures safety, prevents voltage spikes, and maintains voltage quality.

Importance of Proper Grounding

Ohm’s Law in Troubleshooting Electrical Issues

Understanding the values for voltage, current, and resistance helps to identify any faults in a circuit.

Understanding the values for voltage, current, and resistance helps to identify any faults in a circuit.

Ohm’s Law in Troubleshooting Electrical Issues

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