Current Electricity

NCERT Textual Problems-Unit-2

What are Kirchhoff’s Laws, Wheatstone Bridge and Meter Bridge in Electricity. What is a Potentiometer and what are its applications.

Electric Cells, types and their Grouping-1 Introduction of Electric Cells, types and their Grouping-1 Volta, a scientist in 1800, with the idea that a continuous electric power can be generated from the fluids when used as conductor. After a long…

Colour Coding: The electric and electronic circuits of all types employ various types of electronic components namely, active elements- junction diodes, transistors, field effect transistors e.tc. and passive components- Resistances, capacitors, inductors e.tc. The resistances used in electronic circuits, particularly…

Temperature Dependence of Resistivity-12 Introduction The variation of resistivity of a metallic conductor, semi conductor and alloy with temperature is not same in all cases but is different for the different materials. Temperature dependence of resistivity in case of Metallic…

Limitations of Ohm’ Law-12 CBSE Ohm’s law is not a fundamental law of nature but in actual practice, there are certain cases  where the slope of the V-I graph is not constant and the relation                                                V = R I…