- #1
hquang001
- 31
- 3
- TL;DR
- Why in a circuit, when a resistor is connected parallel to a voltage source, or in series with current source, we can get rid of that resistor ?
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Resistor is connected parallel to Voltage Source
- Thread starter hquang001
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Connecting a resistor in parallel with a voltage source primarily results in heat generation without impacting circuit analysis, unless heat is a necessary factor for the circuit's function. An ideal voltage source maintains its voltage regardless of the current supplied, while an ideal current source adjusts its voltage to ensure a constant current flow. The presence of the resistor does not influence the overall circuit behavior in these scenarios. Circuit diagrams can clarify the relationships between voltages and currents. Understanding these principles is essential for accurate circuit analysis.
- #2
Baluncore
Science Advisor
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Because in those situations the resistor only generates heat. The resistor does not affect the way the rest of the circuit is analysed, unless the circuit is a heater or needs the heat source.
An ideal voltage source will maintain the ideal voltage, no matter how much current it must supply.
An ideal current source will provide sufficient voltage to maintain the ideal current, no matter how much voltage is dropped across the resistor.
An ideal voltage source will maintain the ideal voltage, no matter how much current it must supply.
An ideal current source will provide sufficient voltage to maintain the ideal current, no matter how much voltage is dropped across the resistor.
- #3
BvU
Science Advisor
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Because the influence on whatever more the complete circuit contains is zero ... 
Draw the circuits you mention and look at voltages and currents ...
[edit] ah ...
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Draw the circuits you mention and look at voltages and currents ...
[edit] ah ...
##\ ##