Resistance and circuit components

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Question 4
Medium

In an investigation to find the resistance of a heating element, a student measures the resistance in two different ways.

Method A: Use a digital ohmmeter.

Method B: Use a high-resolution digital voltmeter and a digital ammeter to measure potential difference and current, then calculate resistance.

Diagram comparing Method A and Method B.

Explain why Method B allows for a more precise determination of the resistance than Method A.

[2]

Resistance and circuit components Questions

  1. GCSE
  2. /Physics
  3. /Resistance and circuit components