Why is the curve representing Ohm's law linear?

The curve that represents Ohm’s law is linear as the law denotes a linear relationship between the applied voltage and the current produced. The electric current is proportional to the voltage, hence the I–V curve is a straight line through the origin with a positive slope.

Related Questions:

Read More:

Ohm’s Law – Important Topics
Current Electricity	Cells in Series and in Parallel	Current Density
Wheatstone Bridge	Relation between kva and kw	Combination of Resistors
Potentiometer	Cells, emf, Internal Resistance	Unit of Specific Resistance
Static Electricity	Difference between AC and DC	Resistor Colour Codes
Ampere	Difference between kva and kw	Permittivity And Permeability
Electric Dipole	Resistivity Temperature Dependence	Unit of Current
Meter Bridge	Difference between rtd and thermocouple	Electromotive Force
Kirchhoff’s Rules	Difference between air conditioning and refrigeration	Internal resistance formula
Types of Current	Relation between resistance and length	Types of Resistors
Derivation of Drift Velocity	Difference Between Primary Cell and Secondary Cell	Electrical Formula
Drift Velocity	Differences Between Acceleration and Velocity	Power Of Alternating Current
Resistivity formula	Relation between power and resistance	Current density formula
Carbon Resistor	Difference between earth and neutral	Resistance Formula
Uses of Resistor	Difference between emf and voltage	Circuit Diagram
Power transformers	Current Electricity NCERT Solutions	Voltage divider formula

CBSE CLASS XII Related Questions

1.
Write two advantages of reflecting telescope over refracting telescope.

View Solution

2.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

View Solution

3.
A charged particle $+q$ in an electric field $\vec{E}$ experiences a force in the direction of the electric field. As a result, its kinetic energy changes. Similarly, the charged particle also experiences a force when it moves in a magnetic field $\vec{B}$. But this magnetic force is perpendicular to both velocity $\vec{v}$ of the charged particle and the magnetic field $\vec{B}$, so it cannot change the kinetic energy of the charged particle. Consider two charged particles 1 and 2 of masses $m$ and $\frac{m}{2}$ having charges $-q$ and $+2q$ respectively. They are accelerated from rest through the same potential difference $V$ and acquire kinetic energy $K_1$ and $K_2$. Then they enter in a region of uniform magnetic field $\vec{B}$ perpendicular to their velocities.

4.
Read the following paragraph and answer the questions that follow.
In an experiment with convex lens of focal length f, the screen is fixed at a distance D from the object. A student slowly moves the lens away from the object towards the screen and finds that she is able to form sharp image of the object for two positions of the lens. The distance between these two positions of the lens is d.

5.
Read the following paragraph and answer the questions that follow.
A p-type or n-type semiconductor can be converted into a p-n junction by doping it with suitable impurity. The motion of majority charge carriers causes diffusion current across the junction while the barrier electric field causes motion of minority carriers for drift current. In case of unbiased diode, the diffusion and drift currents are equal. This equilibrium is disturbed by the biasing batteries. Diodes, therefore, allow currents in one direction. This property of diode is used in making rectifiers.

6.
An electric field $\vec{E}$ is established across the ends of a cylindrical conductor of length L and area of cross-section A. Discuss how electrons attain an average velocity, independent of time. Hence, obtain a relation between current in the conductor and this ‘average velocity’ of electrons.

View Solution

Why is the curve representing Ohm's law linear?

CBSE CLASS XII Related Questions

1.
Write two advantages of reflecting telescope over refracting telescope.

2.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

Why is the curve representing Ohm's law linear?

CBSE CLASS XII Related Questions

1.Write two advantages of reflecting telescope over refracting telescope.

2.Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Write two advantages of reflecting telescope over refracting telescope.

2.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.