what is Ohm law? Related: Fun Video: What is Electric Current (Ohm's law, Resistance and Power)?

Question

what is Ohm law? Related:  Fun Video: What is Electric Current (Ohm's law, Resistance and Power)?

Answer

According to this law potential difference between two points is directly proportional to the current passing through the resistance and directly proportional to the resistance of the circuit.The formula is V=IR

Answer

The first, and perhaps most important, the relationship between current, voltage, and resistance is called Ohm’s Law, discovered by Georg Simon Ohm.

Voltage= Current× Resistance
V= I×R
V= voltage, I= current and R= resistance

Answer

Current Electricity 05 : Ohm's Law (Scalar and Vector Form ) and Current Density JEE MAINS/NEET

https://edurev.in/studytube/current-electricity-05-ohm-s-law-scalar-and-vecto/c281838e-1efc-425f-9799-29b9263782f5_v

Answer

Introduction:
Ohm's law is a fundamental principle in electricity that relates the electric current flowing through a conductor to the voltage applied and the resistance of the conductor. It was named after the German physicist Georg Simon Ohm, who first formulated this law in 1827. Ohm's law is widely used in various electrical and electronic applications.

Ohm's Law Equation:
Ohm's law is represented by the equation: V = I * R, where:
- V is the voltage across the conductor in volts (V)
- I is the electric current flowing through the conductor in amperes (A)
- R is the resistance of the conductor in ohms (Ω)

Explanation:
1. Voltage (V):
Voltage is the potential difference between two points in an electrical circuit. It is measured in volts. Voltage is responsible for the flow of electric current through a conductor.

2. Electric Current (I):
Electric current is the flow of electric charge through a conductor. It is measured in amperes. Current is caused by the movement of electrons in a circuit and is influenced by the voltage and resistance.

3. Resistance (R):
Resistance is the opposition to the flow of electric current in a conductor. It is measured in ohms. Resistance is determined by the material, length, and cross-sectional area of the conductor. Materials with high resistance impede the flow of current, while materials with low resistance allow current to flow easily.

Relationship between Voltage, Current, and Resistance:
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor. This relationship can be summarized as follows:
- If the voltage (V) increases, the current (I) also increases, given a constant resistance (R).
- If the resistance (R) increases, the current (I) decreases, given a constant voltage (V).
- If the current (I) increases, the voltage (V) also increases, given a constant resistance (R).

Applications:
Ohm's law is fundamental in understanding and designing electrical circuits. It is used in various applications, including:
- Calculating the current flowing through a circuit given the voltage and resistance.
- Determining the resistance required to limit the current in a circuit.
- Designing and selecting appropriate components for circuits based on desired current and voltage values.
- Analyzing and troubleshooting electrical circuits.

Conclusion:
Ohm's law is a crucial principle in electricity that provides a mathematical relationship between voltage, current, and resistance. Understanding Ohm's law is essential for designing and analyzing electrical circuits, as well as troubleshooting electrical problems. It is a fundamental concept for anyone studying or working with electricity.

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