Resistance Series Parallel Experiment: Required Practical

GCSE Physics Required Practicals

Resistance in Series & Parallel Circuits
How does the arrangement of resistors in series and in parallel affect resistance?

In this practical you will:

• use circuit diagrams to construct circuits with resistors in series and in parallel
• measure the potential difference and current in circuits with resistors in series and then in parallel.

Method

1. Use the circuit diagram to set up and connect the circuit for two resistors in series R₁=R₂
2. Switch on and record the readings of the ammeter and the voltmeter.
3. Calculate the total resistance of the series circuit.
4. Set up the circuit for two resistors in parallel.
5. Switch on and record the readings of the ammeter and the voltmeter.
6. Calculate the total resistance of the parallel circuit.
7. What conclusions can you make about the effect of adding resistors

• in series
• In parallel

8. How could you check the value of the resistance of R1 and R2 in either circuit?

Resistors in Series & Parallel - GCSE Science Required Practical
How to measure the total resistance of resistors in series and parallel?
00:00 Introduction
00:50 Resistors in series circuit
03:18 Resistors in parallel circuit

• Show Video

The following diagram shows the formula for calculating the resistance of resistors in series and parallel.

 

AQA GCSE Science Required Practical - Series and Parallel Resistors
The AQA Required Physics Practical on Series and Parallel Resistors and Analysis of the results

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