A coil of resistance 8 ohms and inductance 80mH in series with a 40uF capacitor, is
connected to a 200V, 100Hz supply. Calculate
(a) the current flowing,
(b) the phase difference between the supply voltage and current,
(c) the voltage across the coil and
(d) the voltage across the capacitor.

The answer is as follows in the photo

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips.