Problem #20) Given the following circuit having the component values: Vs = 50 volts, R₁ = 25 2, R₂ = 50 £2, Vs A a) Determine the node voltages V₁ and VB in the circuit as well as the source current Is. b) If the resistor R₂ is removed from the circuit and replaced by an idea wire (short-circuit), determine the new values for VA, VB, and Is. Is R1 B

Three resistors are connected in parallel namely R1, R2 and R3. It is impressed by a source voltage of 120V. If R1 receives 15W while R2 carries a current if 100mA, what should be the value of resistance R3 if the power supplied by the voltage source is 60W?   a. 364.4 ohmsb. 436.4 ohmsc. 43.64 ohmsd. none of these

can someone help me with this problem and show your work step by step

LO: 1, 2, 4,5,6: Figure shows the resistors from the previous two examples wired in a differentway—a combination of series and parallel. We can consider R1 to be the resistance of wiresleading to R2 and R3. (a) Find the total resistance. (b) What is the IR drop in R1? (c) Find thecurrent I2 through R2. (d) What power is dissipated by R2?

How to do using variation parameter method ?

a. How many essential nodes are there in the circuit shown in Figure 1? b. Using the defined nodes and reference node shown for the circuit in Figure 1, what is the valid node-voltage expression for node 1. c. Using the defined nodes and reference node shown for the circuit in Figure 1, what is the valid node-voltage expression for node 2. d. For the circuit shown in figure 1, how much power is the 20 ohm resistor absorbing?