Life as a property investor and/or developer inevitably involves all manner of decisions, day after day. However, it might be ...

How a Simple LED Resistor Calculator is Helping DIYers and Engineers Save Time March 22, 2025 by David Edwards Time will ...

At other times it is less! To calculate the r.m.s. voltage from the peak voltage the factor of \(\frac{1}{\sqrt2}\) is used. Peak power is twice the r.m.s. power. \(Power=current\times voltage\).

Record voltage, current and diameter of the wire, d (supplied by the manufacture). Calculate resistance and cross section area, A, in mm 2 (A = \(\frac {{\pi }d^2}{4}\)). Plot a graph of ...