SureDen
Power
Power of a body is defined as the rate at which the body can do the work.
Average power
Energy
The energy of a body is defined as its capacity for doing work.
(1) Since energy of a body is the total quantity of work done th
Work:
Work is said to be done when a force applied on the body displaces the body through a certain distance in the direction of force.
Joule's Law.
Whenever heat is converted into mechanical work or mechanical work is converted into heat, then the ratio of work done to heat produce
Case 1: If magnitude of Force is and ဠis constant
Work Done by a Constant Force.
Nature of Work Done.
Positive Work:
Work done is positive if force or its component displaces the body in the direction
1.Work Done by Gravitational Force
Case a: If a ball is thrown up then gravitational force is acting downward and displacement is
Work Energy Theorem
Derivation
Let a body is initially at rest and force F is applied on the body to displace it throug
Mode of Transference of energy
If energy generally transfers occur in 2 modes →
In terms o
Zeroth Law of Thermodynamics.
If systems A and B are each in thermal equilibrium with a third system C, then A
A particle executing S.H.M. possesses two types of energy : Potential energy and Kinetic energy
(1) Potential energy : This is an accou
Heating effect of current: the phenomenon of the production of heat in a resistor by the flow of electric current through it is called heati
Work, Energy and Power for Rotating Body
Work : If the body is initially at rest and angular disp
Electric potential energy:
The electric potential energy of a system of point charges may be defined as the amount of work done in assembling the
Collision is an isolated event in which a strong force acts between two or more bodies for a short time as a result of which the energy and momentum of the in
Conservative forces :
==>These are those forces whose work done in a closed path is zero.
Gibbs energy-
Gibbs energy of a system is defined as the maximum amount of energy available to the system during a process that can be concentrated
Internal energy → The total amount of energy stored in a substance is known as Internal energy. Total internal energy is the sum of the
Second Law of Thermodynamics
First law of thermodynamics merely explains the equivalence of work and heat. It does not explain wh
Electric potential: The electric potential at a point in an electric field is the amount of work done in moving charge from infinity to that point.
Types of equilibrium : If net force acting on a particle is zero, it is said to be in equilibrium.
For equilibrium
In stretching a wire work is done against internal restoring forces. This work is stored in the wire as elastic potential energy or strain energy.
If a force F
Law of Conservation of Energy :Energy can neither be created nor be destroyed.
Law of Conservation of Mechanical Energy: It states that&nbs
Energy stored in a capacitor: A capacitor is a device to store energy. The process of charging up a capacitor involves the transferring of electric from
Particle nature of electromagnetic radiation
(Planck’s quantum theory)
Radiant energy is emit
Electron Emmision-The liberation of electrons from the surface of a metal due to any reason is known as Electron Emission.
If we atke a piece
A flowing fluid in motion possesses the following three types of energy
Stopping of Vehicle by Retarding Force.
If a vehicle moves with some initial velocity and due to some retarding force it stops after covering some
Question 1: Determine whether each of the following relations are reflexive, symmetric and
transitive:
(i) Relation R in the set A = {1,
Coming Soon...