CAPACITANCE OF CAPACITOR
The ability of a capacitor to store electric charge between its plates is its capacity or
The capacitance of a capacitor is defined as:
"The ratio of electric charge stored on any one of
plates of capac
ELECTRIC FIELD - ELECTRIC INTENSITY
When an electric charge is placed in space, the space around the charge is modified and
if we place another test charge within this space, the test charge will experience some
CAPACITANCE IN THE PRESENCE OF DIELECTRIC
1-When dielectric is completely filled between the plates
Let the space between the plates of capacitor is filled with a dielectric of relative
The presence of dielectric reduces the electric inten
RESISTANCE AND TEMPERATURE
Resistance of a conductor is directly proportional to temperature.
With the increase in temperature, vibrational motion of the atoms of conductor increases.
Due to increase in vibration, probabili
Gausss law is a quantitative relation which applies to any closed hypothetical
surface called Gaussian surface to determine the total flux () through the
surface and the net charge(q) enclosed by the surface.
"The total e
ELECTRIC FLUX THROUGH A SPHERE
Consider a small positive point charge +q placed at the centre of a closed sphere of
is not applicable in this situation because the direction of
electric intensity varies poin
ELECTRIC INTENSITY DUE TO A SHEET OF CHARGES
Consider a plane infinite sheet on which positive charges are uniformly spread.
The total charges on sheet = q
Total area of sheet =A
Charge density ( )= q/A (charge per unit area )
Capacitor is an electronic device, which is used to store electric charge or electrical
A system of two conductors separated by air or any insulating material forms a
WE CANNOT STORE ELECTRIC CHARGE ON
ELECTRIC INTENSITY BETWEEN TWO OPPOSITELY CHARGED
Consider two oppositely charged plates placed parallel to each other. Let these
plates are separated by a small distance as compared to their size.
Surface density of charge o