Now, let us measure the current using the multimeter to compare it with our
calculations.
Figure 24. The measured current in this figure is 230 mA.
But there is a tolerance for the resistor, let us measure the resistor.
Figure 25. The measured resistance in this figure is 8.4 Ω.
If we calculate it again using Ohm’s law ” “
𝑉 = 𝐼 · 𝑅
1. 88 𝑉 = 𝐼 · 8. 4 Ω
𝐼 =
1.88 𝑉
8.4 Ω
= 0. 224 𝐴 = 224 𝑚𝐴
So, we can count on this way to measure the current, 224 mA almost equal to 230
mA.
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