For I1 can I use 10V or do I need to find V1 by using the current I found? Also, to find Req for the other resistors do I need to add the 10 ohm and 5 ohm resistors and then solve the Req using the two parallel?berkeman said:Your Req is correct (well, I would keep more significant figures for more calculations). So now you know the current drawn from the 10V supply. That current flows through R1, so that gives you all you need to know about R1. Now calculate the Req for the resistors past R1 so you can see how the current divides between the two branches, and keep on going with the calculation. Please show your detailed work so we can keep checking it. Good so far!
We've learned Kirchhoff's laws.gneill said:
The potential drop off across R1 is 3.7 V. The current through R2 is 0.185. The current through R3+4 is 0.25gneill said:
Your potential drop across R1` is okay, but the other current values do not look good. What are you taking as the potential at node Va? It's certainly not the potential drop across R1!joshqg said:
Circuit analysis is used to understand and analyze the behavior of electrical circuits. It helps in determining the voltage, current, and power in different components of the circuit.
In a series circuit, the components are connected in a single loop, whereas in a parallel circuit, the components are connected in multiple branches. In a series circuit, the current remains the same throughout, while in a parallel circuit, the voltage remains the same.
In a series circuit, the total resistance is simply the sum of all individual resistances. This can be calculated by using the formula: Rt = R1 + R2 + R3 + ..., where Rt is the total resistance and R1, R2, R3, etc. are the individual resistances.
Parallel circuits are used to power multiple components at the same voltage. This allows for different components to have different levels of resistance and still receive the same voltage, making it useful for powering different devices at once.
In a parallel circuit, the total current is divided between the different branches, but the voltage remains the same. To calculate the total current, you can use the formula: It = I1 + I2 + I3 + ..., where It is the total current and I1, I2, I3, etc. are the individual currents in each branch.