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JEE Main Important Physics Formulas Sheet

Preparing for JEE Main becomes much easier when all the important formulas are organised in one place. On this page, you will find easy JEE Main formula sheets,

Key formulas for JEE Main that you need for quick revision, whether you are solving questions, revising concepts, or practising mock tests. These sheets are designed to save time and help you revise faster before exams.

How Can JEE Main 2026 Important Formulas Help?

All JEE Main formulas in one place:

Having all the important JEE Main 2026 formulas ready before starting your preparation. 

JEE Main Better subject-wise revision:

Making separate formula notes for Physics, Chemistry, and Maths helps you revise each subject more clearly.

Stronger concept of JEE Main 

Regularly revising formulas helps you understand concepts better

Improves exam time management:

Knowing formulas well reduces thinking

Makes calculations quickly

Quick recall of formulas leads

Reduces mistakes:

Proper formula revision minimises calculation errors and improves overall accuracy in the JEE Main exam.

Important Formulas of Physics for JEE Mains 2026

The Physics section of JEE Main is often seen as tough by students because of long formulas, derivations, and many different topics. According to the JEE Main Physics Syllabus 2026, it includes chapters like Mechanics, Electricity and Magnetism, Thermodynamics, Optics, and Modern Physics.

To do well in this section, it is very important to remember and practice key Physics formulas. Having the important JEE Main 2026 Physics formulas in one place helps in quick revision and makes solving questions easier. Let’s look at some must-know formulas for JEE Main 2026.

Kinematics Formulas

Displacement

(Initial velocity + Final velocity) / 2 × Time taken

Final velocity 

(Initial velocity + Acceleration) × Time taken

Acceleration

(Final velocity - Initial velocity) / Time taken

Average speed

Total distance/Total time

Average velocity

Total displacement/Total time

Newton's Laws of Motion

  • F = m x a (Newton's Second Law of Motion)
  • Weight = m x g (where g is the acceleration due to gravity)
  • Force of friction = u x N (where is the coefficient of friction and N is the normal force)
  • Weight = m x g (where g is the acceleration due to gravity)
  • Impulse = force x time

Work, Energy, and Power Formulas

S.no

Formula

1

Work = force x displacement x cos 0

2

Potential Energy = m x g x h

3

Kinetic Energy = 0.5 x m x v^2

4

Total Mechanical Energy = Kinetic Energy + Potential Energy

5

Power = work done/time taken

Electric Charge and Fields Formulas

S.no

Formula

1

Electric Field = force per unit charge = F/Q

2

Electric Potential = V/d

3

Electric Potential Energy = q x V 

4

 

Coulomb’s Law formula showing force (F) equals k multiplied by charge q₁ and charge q₂, divided by the square of the distance r (F = k × (q₁ × q₂) / r²).

(Coulomb's Law)

Energy of electric dipole: U = -pE

Energy of a magnetic dipole: U = -uBC

Electric Charge: Q = +-ne(where e = 1.60218 x 10^-29), SI unit of Electric Charge is Coulomb ©

Coulomb’s Law: 

Electrostatic Force (F) = k[q1q2/r^2] and,

In Vector Form :

Vector form of Coulomb’s Law showing electric force vector (𝐅⃗) equals k times the product of charges q₁ and q₂, multiplied by the position vector r⃗ divided by r cubed (𝐅⃗ = k(q₁q₂) × r⃗ / r³).

Where q1 and q2 are Charges on the Particle,

 r = Separation between them,

r= Position Vector,

k= Constant =

Numerical value of Coulomb’s constant written as approximately eight point nine eight seven five five multiplied by ten to the power nine, with units of newton meter squared per coulomb squared.

Electric Current :

The current at Time t =

Definition of electric current described as the rate at which electric charge flows with respect to time, shown using a limiting process that leads to an instantaneous rate of change.

Where

Symbols representing change in electric charge and change in time. = Charges crosses an Area in time T

SI unit of Current is Ampere (A) and 1A = 1 C/s

Average Current Density:

Explanation of current density described as electric current flowing per unit area. It shows that current density can be defined as the rate of change of current with respect to area, including the idea of an instantaneous limit. It also explains that when current is not perpendicular to the surface, the effective area depends on the cosine of the angle between the current direction and the normal to the surface. Additional notes clarify that the area considered is very small, the current passes through this area, the perpendicular direction is taken with respect to charge flow, and the angle is between the surface normal and the direction of current.

Kirchhoff’s Law:

Law of Conservation of Charge: 

Statement showing that the third current is equal to the sum of the first and second currents.

Resistance:

Explanation showing how resistivity and resistance of a material change with temperature. It states that both resistivity and resistance at a given temperature depend on their values at a reference temperature, along with a material-specific constant that measures how strongly they vary with temperature. It also clarifies that this constant is fixed for a given material.

Lorentz Force:

Lorentz force equation showing that the force on a charged particle equals the charge multiplied by the electric field plus the cross product of the particle’s velocity and the magnetic field, with labels explaining each variable

Magnetic Flux:

Equation showing magnetic flux as dot product of magnetic field and area vector, defining angle theta and unit Weber measurement.

Straight Line Equation of Motion (Constant Acceleration):

Three basic physics equations of motion showing relationships between velocity, acceleration, time, and displacement, written neatly on a plain background.

Gravitational Acceleration Equation of Motion:

Motion in Upward Direction:

Three kinematics equations for vertical motion under gravity, relating velocity, time, height, and acceleration, written clearly in mathematical notation.

Motion in Downward Direction:

Three vertical motion equations under gravity, showing upward acceleration, linking velocity, time, and vertical displacement in clear handwritten-style notation.

Projectile Equation of Motion:

Formula for the horizontal range of a projectile, showing dependence on initial velocity squared, launch angle sine, and gravitational acceleration.
Equation for time of flight in projectile motion, expressing how initial speed, launch angle, and gravity determine total time in air.
Formula for maximum height in projectile motion, showing how initial speed and launch angle determine the highest vertical point reached.

Where, u = initial velocity,

v = final velocity,

a = constant acceleration,

t = time,

x = position of particle.

Laws of Gravity

 

Universal Law of Gravitation:

Equation for gravitational force, showing how two masses attract each other with strength depending on distance squared and gravitational constant.
Text explaining symbols in the gravitational force equation, defining masses, distance between objects, unit direction vector, and the universal gravitational constant value.

Work Done by Constant Force:

Work done formula showing dot product of force and displacement vectors, expressing work as force magnitude times displacement magnitude and cosine of angle.
Explanation of work done, defining displacement, applied force, angle between them, and stating work as a scalar with joule as SI unit.

Kinetic Friction:

Simple physics equation for kinetic friction, showing frictional force equals coefficient of kinetic friction multiplied by the normal reaction force.
Equation for maximum static friction, also called limiting friction, showing it equals the coefficient of static friction times the normal force.
Explanation of friction terms, defining normal force and distinguishing between coefficients of kinetic friction and static friction used in physics.

Simple Harmonic Motion:

Equation representing Hooke’s law in simple harmonic motion, showing restoring force proportional to displacement, with spring constant related to mass and angular frequency.
Text explains symbols in Hooke’s law, defining force constant, particle mass, displacement, and angular frequency squared as a positive constant.

Torque:

Definition of torque in physics, explaining moment of force using vector cross product and emphasizing its importance for JEE Main exam preparation.

FAQs 

Q1. Why important formulas needed for JEE Main 2026?
Important formulas are the base of JEE Main 2026 preparation. They help you solve numerical questions faster, revise before exams, and avoid mistakes during calculations.

Q2. Do these formula sheets follow the JEE Main 2026 syllabus?
Yes, all important formulas for JEE Main 2026 are prepared strictly according to the latest NTA JEE Main syllabus.

Q6. Are Physics formulas more important than Chemistry and Maths?
All three subjects are equally important for JEE Main 2026. Physics formulas help with numericals, Chemistry formulas help in quick recall, and Maths formulas are key for problem-solving speed.

Q7. When should I start revising JEE Main formulas?
You should start revising JEE Main important formulas from the beginning of your preparation and continue till the exam day.

Q8. Can formula sheets help in last-minute JEE Main 2026 preparation?
Yes, JEE Main 2026 formula sheets are perfect for last-minute revision as they save time and help you recall concepts quickly.

Q9. Are these formula PDFs useful for mock tests and practice sessions?
Absolutely. These important JEE Main formula PDFs are very useful while practising questions and analysing mock test performance.

 

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