Using Ohm’s law “ “
𝑉 = 𝐼 · 𝑅
1. 865 𝑉 = 𝐼 · 7. 5 Ω
𝐼 =
1.865 𝑉
7.5 Ω
= 0. 249𝐴 = 249 𝑚𝐴
Now, let us measure the current using the multimeter to compare it with our calculations.
The measured current in this figure is 237 mA.
But there is a tolerance for the resistor, let us measure the resistor.
The measured resistance in this figure is 8.3 Ω.
33
Mastering the Art of Measurement (DM501D Digital Multimeter) r.01 www.plusivo.com
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