2. In Figure 3, the ammeter is measuring the current passing through the resistor only, but the voltmeter is measuring the total voltage across the resistance and the ammeter. If the resistance of the ammeter RA is one-hundredth of R, what is the percent error when we calculate R' = V/I using the voltage measured by the voltmeter in Figure 3? V I R Figure 3 V

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Q: Can I see an example of how to measure a load voltage and current using breadboard with multimeter

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KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.