# KVL in loop with only one element?

Discussion in 'Homework Help' started by peterpants, Sep 28, 2008.

1. ### peterpants Thread Starter New Member

Jun 4, 2008
1
0
given this circuit...

how could one reason that KVL applies to this (green) loop?

Is it just zero? There is no current flowing between a and c?

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2. ### kirit Active Member

Sep 9, 2008
35
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edit-- nevermind.... Im interested to find out what the answer is now.

3. ### Ratch New Member

Mar 20, 2007
1,068
4
peterpants,

There is no charge flowing through a and c because it is shorted. No voltage either.

No voltage sources in the green loop, no voltage used in any of the circuit elements. KVL is 0 = 0

Ratch

4. ### integralx2 New Member

Sep 27, 2008
8
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if short circuited from A and C there is no current flowing. There can be Voltage, but no current .

5. ### veritas Active Member

Feb 7, 2008
167
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There cannot be voltage across a (ideal) short. Voltage implies current.

The only voltage drop in this circuit will be across the 3 ohm resistor.

6. ### veritas Active Member

Feb 7, 2008
167
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Basically, don't try this circuit at home