Here are the key points to include in an introduction for a lab report on batteries, resistance and current:
- Define voltage, resistance and current. Voltage is the "pressure" that pushes electric charge through a circuit. Resistance is a measure of how difficult it is for charge to flow through a material. Current is the rate of flow of electric charge.
- Explain Ohm's law and its relationship between voltage, resistance and current. According to Ohm's law, current is directly proportional to voltage and inversely proportional to resistance. The mathematical relationship is I=V/R.
- State the objectives of the lab. The objectives are to experimentally determine the relationships between voltage, resistance and current as described by Oh