The objective is to:
1. Define potential difference and state its units
2. Measure potential difference and current in a circuit
3. Verify Ohm’s law
4. Define resistance and state its unit
5. Determine experimentally the voltage – current relationship for various conductors
6. Define emf and explain internal resistance of a cell
7. Derive the formula for effective resistance of resistors in series and in parallel
8. Solve numerical problems involving Ohm’s law, resistors and series and in parallel