## Q. 1.P.19

Determine the current i in the circuit.

## Verified Solution

Applying nodal analysis

$\begin{array}{r} -4+i+\frac{V-20}{2}=0 \\ -4+\frac{V}{2}+\frac{V-20}{2}=0 \\ -4-\frac{2 V-20}{2}=0 \end{array}$

So, we have $V=14 V \Rightarrow i=\frac{V}{2}=7 A$

Note: A resistor in series with an ideal current source is always neglected from the nodal analysis. But in the power calculation, it cannot be neglected.