In the shown circuit, given that R1 = 30, R2 = 30, R3 = 60, R4 = 20, V1 = 30V, V2 = 36V, Is = 2A, %3D R1 +v, R3 V2 Is (1) ix R2 R4 using the principle of superposition, calculate the following: 1. ix...

Extracted text: In the shown circuit, given that R1 = 30, R2 = 30, R3 = 60, R4 = 20, V1 = 30V, V2 = 36V, Is = 2A, %3D R1 +v, R3 V2 Is (1) ix R2 R4 using the principle of superposition, calculate the following: 1. ix = A 2. Find the total power consumed by all the resistors, PTOTAL= W 3. ix when only the value of V1 is doubled = A 4. ix when only the value of V2 is doubled = A 5. ig when only the value of Is is doubled = A. 6. iz when V1, V2 and Iş are doubled = A + 1