Unit- 2: Current Electricity
	Electric Current
	Current Carriers
	Drift Velocity and Mobility
	Ohm’s Law
	Electrical Energy and Power
	Electrical Resistivity and Conductivity
	Carbon Resistors
	Combination of Resistors
	Cell
	Kirchhoff’s Law
	Wheatstone Bridge and Metre Bridge
	Potentiometer and Its Principle of Working
	Comparison of emfs of Two Cells using Potentiometer
	Determination of Internal Resistance of a Cell by Potentiometer Method