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Friday, October 18, 2019

MOTION


DISTANCE.


Distance is the measure of the amount of how far a body has moved between two points. Distance is a scalar quantity and the SI unit is meter (m).

Friday, September 20, 2019

RESISTANCE OF MATERIALS


EFFECT OF TEMPERATURE ON RESISTANCE IN METALS, INSULATORS AND SEMICONDUCTORS.

When the temperature of a metal is increased, the amplitude of vibration of atoms in the metal also increase, this impedes the free movement of electrons in the conductors thereby increasing the resistance. Therefore, in metals, increase in temperature

Thursday, September 19, 2019

SEMI-CONDUCTOR DIODE


A diode is a one way device that allows electric current to flow through only one direction

I-V CHARACTERISTICS OF OHMIC CONDUCTOR, FILAMENT LAMP AND SEMICONDUCTOR DIODE

OHMIC CONDUCTOR 

Ohmic Conductors are conductors that obey ohm's law. Therefore, the current is directly potential to the potential difference.

Friday, September 13, 2019

POTENTIAL DIFFERENCE AND RESISTANCE



POTENTIAL DIFFERENCE
The potential difference between two points in an electric circuit is the work done when a coulomb of charge passes between the points.

Saturday, September 7, 2019

MEASUREMENTS


MEASUREMENTS


Physics like most other sciences is based on experimental observations and measurements.

MAGNETISM




MAGNETIC FORCE

Magnetic force is an attractive pull or a repulsive push between poles of magnets.