SureDen
In a non-uniform electric field, the +q and –q charges of a dipole experiences different forces (not equal and opposite) at slightly different positions in the field and
Cells in series :
Classification of magnetic materials:
Diamagnetic substances: Diamagnetic substances ar
Centre of Mass
Centre of mass of a system (body) is a point that moves as though all the mass were concentrated there and all external forces were
The maximum distance upto which the force of attraction between two molecules is appreciable is called molecular range (
Electrostatics properties of a conductor:
When placed in electrostatic field, the conductors shows the following properties:
Ne
Dielectric:
A dielectric is a substance which does not allow the flow of charges though it but permits them to exert electrostatics forces on one
In IONIC compounds, the redox reaction can be explained on the basis of electron transfer but in COVALENT compounds it is not possible. The oxidation number explains the pheno
Nucleophilic Addition Reactions
Being unsaturated, aldehydes and ketones undergo addition reactions. They have a polar carbonyl group. The carbon o
Key Functions of Ecosystem:-
Productivity
Efficiency
Energy flow
PROTEINS
Proteins are the complex organic substances which are the basis of protoplasm and are found in all the living organisms. In general proteins are the polyme
Charge --Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
Two kinds of charges : The following simple experiment proves these facts:
Rub a gla
Active Transport: Uses energy to pump molecules against a concentration gradient. Casparian strip presents in the endodermis (the i
Capacitance of parallel plate capacitor with a dielectric slab:
The capacitance of a parallel plate capacitor of plate area A and plate separation
Magnetic force on a moving charge: the electric charges moving in a magnetic field experiences a force F such that
(i) The force is proportional to
Velocity: Rate of change of position with time is called velocity.
(a) It is a vector quantity
Inner Transition Elements: (f-block elements) – Lanhanoides and Actinoides
The inner transition elements are divided into two categories Lant
Preparation of haloalkanes Part 1
Preparation of haloalkanes:
Haloalkanes can be produced from virtually all organic precursors. From the perspective of industry, the most important ones are alkanes and alkenes.
From A
Physical properties of aliphatic aldehydes and ketones
Aldehydes and ketones are simple compounds which contain acarbonyl group - a carbon-oxygen d
Carnot Engine
Carnot designed a theoretical engine which is free from all the defects of a practical engine. This engine cannot be realised in actu
An ideal simple pendulum consists of a heavy point mass body suspended by a weightless, inextensible and perfectly flexible string from a rigid support about which it is free
Whenever a large conductor i.e. 2 dimension or 3 dimension conductor in placed in varying magnetic field an EMF is induced in it due to the find closed paths within concentric circular currents known as eddy currents.
Eddy currents by nature are con
Electric flux :
The electric flux through a given area held inside an electric field is the measure of the total number of electric lines of
In the absence of any electric field, the free electrons of a metal are in a state of continuous random motion. At room temp. their random velocities corresponds to 105
As shown in fig. consider an electric dipole consisting of two point charges –q and +q and separated by a distance 2a. let p be the point on the axis of the dipole
A charge is said to be in equilibrium, if net force acting on it is zero. A system of charges is said to be in equilibrium if each charge is separately in equilibrium.
Solid State
Introduction
Of the three states of matter, solids possess the most structural diversity. Intermolecular forces and therma
Nerst equation of electrode potential (Effect of electrolyte constrictions T)
Electrode potential is said to be standard electrode potential if mea
Magnetic Properties:
Substance shows magnetic properties because of presence of electrons in them. Each electron in an atom behaves like a magnet because of its two
FLOW OF AC THROUGH A CONDUCTOR
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