CRO display (involve D.C and A.C)

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Connecting an AC and DC voltage source in parallel can lead to dangerous outcomes due to conflicting voltage levels. Both sources will attempt to enforce their own voltage values, resulting in a significant current that could become infinite if the sources are ideal. This "struggle" can cause one or both sources, or the connecting wires, to fail, potentially leading to catastrophic failure. The discussion emphasizes the risks of such a connection and the importance of understanding voltage interactions. Proper circuit design must avoid this scenario to ensure safety and functionality.
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Homework Statement



CRO.jpg


So my question is, why isn't D a correct answer?

And also, what will happen to the voltage and ampere, if I connect a A.C. and D.C. parallel?

Homework Equations





The Attempt at a Solution

 
Last edited:
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950315 said:

Homework Statement



CRO.jpg


So my question is, why isn't D a correct answer?

And also, what will happen to the voltage and ampere, if I connect a A.C. and D.C. parallel?
Both voltage sources will insist on forcing the result to be equal to their own values. The resulting "struggle" between them will make them want to produce very large currents indeed; if they are ideal sources the currents would be infinite!. One or both of the sources or the connecting wires between them must fail (zzzzZZT! BANG!). Not so good :eek:
 
Last edited:
gneill said:
Both voltage sources will insist on forcing the result to be equal to their own values. The resulting "struggle" between them will make them want to produce very large currents indeed if they are ideal sources the currents would be infinite!. One or both of the sources or the connecting wires between them must fail (zzzzZZT! BANG!). Not so good :eek:

Alright, thank you very much ! :)
 

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