Two voltage sources and two loads, how to approach this one

In summary, the conversation discusses the application of KVL for two loops and calculating the power consumed by each appliance. The concept of zero potential and polarity of voltage sources is also mentioned. The conclusion is that potential difference is what matters, not the chosen side for zero potential.
  • #1
kostoglotov
234
6

Homework Statement



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imgur link: http://i.imgur.com/G9RKEH1.png

Homework Equations

The Attempt at a Solution


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Should I just consider that A and B are parallel with each voltage source respectively and so therefore that's the voltage drop that they experience individually?

The ground terminal should be zero volts, no? Wouldn't that mean the polarity of the bottom voltage source needs to be reversed?
 
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  • #2
You could try applying KVL for both the loops and obtain something you'll need to calculate the power consumed by each appliance
I'm not completely sure about this though.
 
  • #3
kostoglotov said:
Should I just consider that A and B are parallel with each voltage source respectively and so therefore that's the voltage drop that they experience individually?
Seems right to me.
kostoglotov said:
The ground terminal should be zero volts, no? Wouldn't that mean the polarity of the bottom voltage source needs to be reversed?
Zero potential is a convention. What matters is potential difference. The PC does not care which side you choose to call zero.
 

1. What is the difference between a voltage source and a load?

A voltage source is a device that provides a constant or varying voltage to a circuit, while a load is a device that consumes power from the circuit. In simple terms, a voltage source is like a water pump that provides pressure to move water through a pipe, while a load is like a water turbine that uses the pressure to generate power.

2. Can two voltage sources be connected in parallel to power two loads?

Yes, two voltage sources can be connected in parallel to power two loads. However, it is important to ensure that the voltage ratings of both sources are the same to avoid any imbalances in the circuit.

3. How do you calculate the total voltage in a circuit with two voltage sources and two loads?

The total voltage in a circuit with two voltage sources and two loads can be calculated by adding the individual voltages of the sources and accounting for any voltage drops across the loads. It is important to also consider the direction of the voltage sources and loads in the circuit to ensure accurate calculations.

4. What happens if the voltage ratings of the two sources in a circuit are different?

If the voltage ratings of the two sources in a circuit are different, it can lead to an imbalance in the circuit and potentially damage the loads. It is important to use voltage sources with the same ratings or use a voltage regulator to adjust the voltage to match the requirements of the loads.

5. How can you ensure the proper distribution of power between the two loads in a circuit with two voltage sources?

To ensure proper distribution of power between the two loads in a circuit with two voltage sources, you can use a power divider or a load balancing circuit. These devices will help evenly distribute the voltage and current between the loads, preventing overloading of one load and underutilization of the other.

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