Discussion in 'General Electronics Discussion' started by henrib736, May 26, 2013.

1. ### henrib736

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May 25, 2013
Hi everyone,

Consider the circuit here:

When two sources are in a parallel circuit, their voltages add up, right?

So I have a 0.5 volt battery and a 4700MF capacitor with a charge of 0.5 volts, but when I measure the voltage at h and z, the voltage is still 0.5 volts.

Do you know what is wrong with this circuit?

Henri

2. ### (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

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Jan 21, 2010
No, when in parallel, the voltages are always the same.

3. ### henrib736

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May 25, 2013
So do the voltages add up when they are in series?

4. ### (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

25,497
2,838
Jan 21, 2010
That is correct.

5. ### davennModerator

13,838
1,952
Sep 5, 2009
except dont try that with a battery and a capacitor ... it wont work, you will get 0V as current doesnt flow through a capacitor.

but if it was 2 x 1.5V batteries in series, then you would have 3V total

Dave

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May 25, 2013
Thank you!