The value of $$E$$ and $${\rm I}$$ for the circuit shown in Figure, are ..... $$V$$ and ...... $$A.$$

The voltage and current waveforms for an element are shown in Figure. The circuit element is .......... and its value is .........

For the circuit shown in Fig, the Norton equivalent source current value is _________ $$A$$ and its resistance is ___________ $$Ohms$$

Find the Thevenin equivalent about $$AB$$ for the circuit shown in Figure.