1.	\(V_B\) increases, \(x\) decreases	2.	\(V_B\) decreases, \(x\) increases
3.	\(V_B\) increases, \(x\) increases	4.	\(V_B\) decreases, \(x\) decreases

1.	\(1.0 \times 10^6 ~\text{V/m}\)	2.	\(1.0 \times 10^5 ~\text{V/m}\)
3.	\(2.0 \times 10^5 ~\text{V/m}\)	4.	\(2.0 \times 10^6 ~\text{V/m}\)

1.	all the current \(I_1, I_2~\text{and}~I_3\) change.
2.	only \(I_1\) and \(I_2\) change and \(I_3\) remains constant.
3.	only \(I_1\) and \(I_3\) change and \(I_2\) remains constant.
4.	all the currents remain constant.

1.	\(i_{1}\) and \(i_{2}\) change.
2.	\(i_{2}\) and \(\text V_{0}\) change and \(i_{3}\) remains constant.
3.	\(i_{2}\) and \(\text V_{0}\) don't change while \(i_{3}\) changes.
4.	\(i_{3}\) and \(\text V_{0}\) don't change while \(i_{2}\) changes.

1.	\(5\) A	2.	\(0.2\) A
3.	\(0.6\) A	4.	zero