A network contains linear resistors and ideal voltage sources.

A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then the voltage across each resistor is

First Method :

	V	ratio is a constant R. If R is doubled current will become half.
	I

V = 2R	I	= RI
	2

Second Method :

V_R1 =	V	× R₁
	R₁ + R₂

V_R2 =	V	× R₂
	R₁ + R₂

If R₁ and R₂ are doubled, then

V'_R1 =	V × 2R₁	= V_R1
	2(R₁ + R₂)

V'_R2 =	V × 2R₁	= V_R2
	2(R₁ + R₂)