ELECTRIC FIELDS
CONTENT
- Production of Continuous Charges
- Types of Cells
- Electric Circuit Series and Parallel Arrangement of Cells and Resistors
- Shunts and Multipliers
- Resistivity and Conductivity
- The Wheatstone Bridge
- The Metre Bridge
- The Potentiometer
- Merits of the Potentiometer Over the Voltmeter
- Electric Force between Two Points Charges (Coulomb’s Law of Electrostatic Force)
- Electric Field Intensity or Strength ε
- Electric Potential VE
Production of Continuous Charges
Continuous charges are also called current (or moving electrons). They are produced by a device called ‘a cell’.
Types of Cells
There are two types of cells. Namely:
A. Primary cells
B. Secondary cells.
A. Primary cells:
These are cells that cannot be recharged once they run down. E.g. torch batteries, calculator batteries, leclanche cell, Daniel cell. The components of the cell are shown below:
However, primary cells have two defects.
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