Chapter 3 - Current Electricity
Topic Covered
- Electric Current
- Direction of electric current
- current carriers
- Electric current in conductors
- Drift Velocity
- Mobility
- Ohm's Law
- Electrical Resistance
- Electrical resistivity or specific resistance
- Current Density, Conductance, Electrical conductivity
- Effect of Temperature on Resistance
- Non Ohmic Devices or limitations of Ohm's law
- Thermistors
- Super conductivity
- Color code for carbon resistors
- Resistance in Series
- Resistance in Parallel
- EMF, Internal Resistance and teminal potential difference of a cell
- Difference between EMF and Potential Difference
- Grouping of two cells in series and parallel
- Grouping of number of identical cells
- Kirchoff's rule
- Junction rule
- Loop theorem or volatage rule
- Wheatstone bridge Principle
- Potentiometer and its principle
- Determination of potential diff. using potentiometer
- Comparison of EMF of Two cells
- Determination of internal resitance of a cell by potentiometer method
- Diff b/w potentiometer and voltmeter
- Heating effect of Current
- Heat produced by electric current
- Electric Power
- Electric Energy
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