Short circuit's effect on a voltage source and a resistor

[garr6120]

If I have a resistor and a voltage source in series but then I apply a short circuit in parallel to both of them would the voltage source and resistor not receive 0 V? Thus having 0 current. What would change in the circuit?

 

[Borek]

Your description is not entirely clear to me, please draw the shorted circuit (and perhaps check if the voltage source is not burning).

 

[garr6120]

Your description is not entirely clear to me, please draw the shorted circuit (and perhaps check if the voltage source is not burning).

Would the infinite current in the series circuit run through the transistor and voltage source causing them both to have a voltage value of 0?

 

[donpacino]

It seems like you have a very fundamental misunderstanding of circuitry...
the current through both elements is I=V/R : I=-15/4000

 

[Borek]

What you call shorting is just closing a circuit.

 

[Guineafowl]

infinite current

Do you really think there would be infinite current? Think in terms of the real world - even copper wires have some resistance, for example.

transistor

What transistor? Slow down and take things step by step.

The voltage source would ‘see’ a current path through the 4k resistor and through the short.

[an erroneous statement has been removed by a moderator]

 

[NascentOxygen]

then I apply a short circuit in parallel to both of them

There is a language ambiguity here, you need to be aware of it and modify your wording so as to eliminate any ambiguity. Taking it as you have written, most readers would probably think of an arrangement of 3 elements, all in parallel. The figure you provided differs from this, and clarifies what you [probably] intended. Though if this wording was provided for you as a homework question and without a schematic, then I think you may not have deduced the arrangement to be as the examiner actually intended.

A circuit comprising nothing else but a parallel connection of two elements is actually a series connection, because every electron passing through one must also pass through the other.

 

[Guineafowl]

I must say I’m a little confused by the schematic in the OP - my interpretation was that the short, effectively across the 4k resistor, is denoted by the ground symbol at ‘0’. If this is the case, then my ‘erroneous’ statement stands (!).

 

[NascentOxygen]

@garr6120 needs to highlight the wire that is the short-circuit he's asking about

 

[CWatters]

garr6120 - the reason for the confusion is that the circuit currently shows a voltage source, resistor and wire all in series with each other.

The wire is parallel with the resistor and voltage _graphically_ but not _electrically_.

 

[jim hardy]

I agree with the other posters, there's no short circuit and there's no infinite (or even large) current.

We had a thread a while back about series and parallel connections that i think OP should study
https://www.physicsforums.com/threads/series-and-parallel-components.920751/#post-5811195
i gave this example which is same as @garr6120 's circuit just different voltage and resistance

..some wise guy will hand you this

and ask you
"Are that battery and that resistor in series or are they in parallel ?"

.........................

Perhaps garr6120 is confused by the ground symbol in his drawing.
It should be erased because no current flows there. I could add one to my sketch and nothing would change.
We have lots of threads on the concept (and misconceptions) of "ground" .

 

[Windadct]

Downside of using spice for everything - people think every circuit needs a ground... argh...

 

[garr6120]

Downside of using spice for everything - people think every circuit needs a ground... argh...

I don’t use it for every circuit only ones that I use voltmeters for. Was to lazy to take it out

 

[Guineafowl]

I don’t use it for every circuit only ones that I use voltmeters for. Was to lazy to take it out

So I was using artistic license in thinking that ground was the short?

Where was the short you intended - between 1 and 0?