Define columbs law and ohm's law?

Question

Answer

Coulomb's law -

F = k q1 q2 / r^2.

Ohm's Law -

Ohm's Law states that the current flowing in a circuit is directly proportional to the applied potential difference and inversely proportional to the resistance in the circuit.

Answer

Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit

Coulomb's law states that the electrical force between two charged objects is directly proportional to the product of the quantity of charge on the objects and inversely proportional to the square of the separation distance between the two objects.

Answer

Coulomb is the si unit of electric charge which is equivalent to the charge contained in nearly 6×10^18 electrons.ohms law:The electric current flowing through a metallic wire is directly proportional to the potential difference v,across the ends provided it's temp.remains the same.

Answer

Coulomb's law states that the force of attraction or repulsion. between two point charges is directly proportional to the product of the. charges and inversely proportional to the square of the distance between them.Ohm's law  stating that electric current is proportional to voltage and inversely proportional to resistance.

Answer

According to Coulomb's law..f=q1×q2/r^2....n u will find d  ohm's law  in NCERT only..

Answer

Coulomb's Law:

Coulomb's law, named after the French physicist Charles-Augustin de Coulomb, describes the electrostatic interaction between electric charges. It states that the force between two point charges is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance between them. The mathematical expression of Coulomb's law is as follows:

F = k * (q1 * q2) / r^2

Where:
- F is the electrostatic force between the charges (in Newtons).
- k is the electrostatic constant, also known as Coulomb's constant, which has a value of approximately 9 × 10^9 N·m^2/C^2.
- q1 and q2 are the magnitudes of the two charges (in Coulombs).
- r is the distance between the charges (in meters).

Explanation of Coulomb's Law:

1. Direct Proportionality:
The force between two charges is directly proportional to the product of their magnitudes. This means that if one charge increases, the force between them will also increase, and vice versa.

2. Inverse Square Law:
The force is inversely proportional to the square of the distance between the charges. As the distance between charges increases, the force decreases rapidly. Conversely, if the distance decreases, the force increases significantly.

3. Similar to Gravity:
Coulomb's law is often compared to Newton's law of universal gravitation. Both laws describe the force between two objects, but while gravity acts on masses, electrostatic force acts on charges.

4. Repulsion and Attraction:
Like charges (positive-positive or negative-negative) repel each other, resulting in a repulsive force. On the other hand, opposite charges (positive-negative) attract each other, leading to an attractive force.

Ohm's Law:

Ohm's law, formulated by the German physicist Georg Simon Ohm, describes the relationship between current, voltage, and resistance in an electrical circuit. It states that the current passing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. The mathematical expression of Ohm's law is as follows:

I = V / R

Where:
- I represents the current flowing through the conductor (in Amperes).
- V denotes the voltage across the two points (in Volts).
- R represents the resistance of the conductor (in Ohms).

Explanation of Ohm's Law:

1. Direct Proportionality:
According to Ohm's law, the current flowing through a conductor is directly proportional to the voltage across it. If the voltage increases, the current also increases, and if the voltage decreases, the current decreases proportionally.

2. Inverse Proportionality:
Ohm's law also establishes an inverse relationship between current and resistance. As the resistance increases, the current decreases, and as the resistance decreases, the current increases inversely.

3. Conductors and Resistors:
Ohm's law is applicable to conductors, which allow the flow of electric charges easily, and resistors, which impede the flow of charges. The resistance of a conductor depends on its material, length, and cross-sectional area.

4. Applications:
Ohm's law is fundamental in understanding and analyzing electrical circuits. It helps determine the current flow, voltage drops, and resistance values, allowing engineers and technicians to design and troubleshoot circuits

Answer

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