Recent content by IronaSona

am kinda new to all of this , and am kinda terrible at maths , just letting you know .To find impedance do i need to do 2*pie*hz*L , and how would i find the L ? 

Hello , i got a give a questions  Q When a direct current of 2A is passed through a coil, the potential difference across the coil is 20V. When an alternating current of 2A at a frequency of 40Hz is passed through the coil, the potential difference across the coil is 140V. a) Find the current...