Science > Physics > Current Electricity
Introduction to Current Electricity
- Electric Current Through Conductor
- Types of Material on the Basis of Electrical Conductivity
- The Requirement of Potential Difference
- Cause of Resistance of a Conductor
- The Resistance of a Conducting Wire
- Specific Resistance or Resistivity of a Conductor
- Conductance and Conductivity
- Ohm’s Law and its Graphical Representation
- Ohmic and Non-Ohmic Resistances
Effect of Temperature on the Value of Resistance
- Temperature Dependence of Resistance
- Expression for Temperature Coefficient of Resistance
- Thermistors
- Kirchhoff’s Junction Law
- Kirchhoff’s Voltage Law
- Application of Kirchhoff’s Law to Simple Circuit
- Wheatstone’s Network (Bridge)
- Wheatstone’s Metre Bridge
Numerical Problems on Wheatstone’s Metre Bridge – 01
Numerical Problems on Wheatstone’s Metre Bridge – 02
- Principle, Construction
- Use of Potentiometer to measure e.m.f. of cell
- Use of Potentiometer to compare e.m.fs. of cells
- Use of Potentiometer to measure Internal Resistance of Cell of cell
Numerical Problems on Potential Drop Across Potentiometer Wire
Numerical Problems on Finding Internal Resistance of a Cell Using Potentiometer