A network contains only independent current sources and

A network contains only independent current sources and resistors. If the values of all resistors are doubled, the values of node voltage—

1. will become half
2. will remain unchanged
3. will become double
4. cannot be determined unless the circuit configuration and the values of the resistors are known

Let I₁, I₂, I₃, … independent current sources are connected in parallel with resistors R₁, R₂, R₃,…

V_A	+	V_A	+	V_A	+ .........= l₁+l₂+l₃+.....
R₁		R₂		R₃

V_A	1	+	1	+	1	+ .........= l₁+l₂+l₃+.....
	R₁		R₂		R₃

According to question, if the values of all resistors are doubled then

Therefore the value of node voltage will become double.
Hence alternative (C) is the correct choice.