Recent content by balboa

In an AC circuit, where there is only one ideal inductor and resistor, the resonance frequency occurs if the impedance of the inductor is equal to the resistance of the resistor. Why? I hope you understood the question and looking forward for explanation. thanks!

ok, I think I've got a point, thank you all for help :)

thnx BobG, but what about this: 4.4 has two sig figs and 16.2 has three sig fig (different number of sig figs but same uncertainty <plus or minus 0.1>) both 0.03 and 0.0000003 have only 1 sig fig (same number of sig figs but different uncertainty) This was my point when I was...

so as I understood the sig figs have nothing to do with how much we are certain about measures! in my example those were input values, and I thought that sig figs have something with how certain those values are, but it seems they just show us how to calculate with them thanks for your...

When certain quantities are measured, the measured values are known only to within limits of the experimental uncertainty! It's here where significant figures comes on scene. Let us assume that the accuracy to which we can measure the length is +-0.1 cm. If we measured it to be 16.2 cm...