Georg Simon Ohm was famous for publishing a formula in 1827. What does it describe?

The sum of all currents entering a junction must equal the sum of all currents leaving the junction.

The correct answer is (c) The current flow is proportional to potential difference and inversely proportional to resistance.

Explanation:

Georg Simon Ohm was a German physicist who formulated Ohm's Law in 1827.
Ohm's Law states that the electric current (I) flowing through a conductor is directly proportional to the voltage (V) applied across it and inversely proportional to the resistance (R) of the conductor.
The mathematical expression of Ohm’s Law is:

V=IR

where:

This law forms the basis of electric circuits and electrical engineering and is crucial in analyzing and designing electrical systems.

Information Booster:

Ohm's Contribution to Physics:

Ohm’s research in electrical resistance led to the concept of Ohm’s Law, which is fundamental in circuit theory.
He was the first to establish the relationship between voltage, current, and resistance.
The SI unit of resistance, the ohm (Ω), is named in his honor.

Practical Applications of Ohm’s Law:

Used in designing electronic circuits and electrical appliances.
Helps in calculating resistance, current, and voltage in an electric circuit.
Used in power transmission to ensure efficiency and safety.

Additional Knowledge:

Kirchhoff’s Current Law (KCL), which states that the sum of all currents entering a junction must equal the sum of all currents leaving the junction.
Gauss’s Law, which states that the total electric flux through a closed surface is proportional to the charge enclosed within the surface.
Faraday’s Law of Electromagnetic Induction, which states that the induced EMF (Electromotive Force) in a coil is directly proportional to the rate of change of magnetic flux through it.