Quick elemental question about a circuit (Finding V in a node)

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The voltage at node C is -0.6 V due to the presence of a reference node in the circuit diagram. Initially, there was confusion regarding the voltage value, but it was clarified that the reference node explains the negative voltage. The issue stemmed from a mistake in the drawing. The discussion concluded with the problem being resolved. Overall, understanding reference nodes is crucial for accurate voltage calculations in circuits.
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Hi,

I just made a really poorly drawn part of a circuit I'm trying to solve. But, I got one question that I don't understand!

How come the Voltage of the node C is -0.6 V? Can someone be kind enough and explain it to me?

Any help is appreciated.
 

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Meh, nevermind, there is a mistake on the drawing. Right besides the .6V there is a reference node, therefore the voltage of C = -.6 V.

So, yeah, solved.
 
wiz0r said:
Meh, nevermind, there is a mistake on the drawing. Right besides the .6V there is a reference node, therefore the voltage of C = -.6 V.

So, yeah, solved.

And before your picture was even approved.

Good luck.
 
Thread 'Correct statement about size of wire to produce larger extension'

Thread 'Correct statement about size of wire to produce larger extension'

The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...
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