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Physics 8 Online
OpenStudy (anonymous):

help!

OpenStudy (anonymous):

OpenStudy (jamesj):

What's the question here?

OpenStudy (anonymous):

Look at the circuit below. What is the voltage between points D and E?

OpenStudy (jamesj):

Is there any resistance between D and E? And with that resistance what should the potential difference be?

OpenStudy (anonymous):

thats all the info i got

OpenStudy (jamesj):

I'm giving you the answer: Is there any resistance between D and E?

OpenStudy (jamesj):

No, there is not. Hence ...

OpenStudy (anonymous):

oh sorry, no. so 1.5 V?

OpenStudy (jamesj):

\[ V = IR \] Hence if \( R = 0 \), then \( V = \) ... what?

OpenStudy (anonymous):

0?

OpenStudy (jamesj):

Has to be.

OpenStudy (jamesj):

\[ V = IR \] Potential difference = (Current)x(Resistance)

OpenStudy (anonymous):

ok, is that becus the bulbs take 150 and the battery is 1.5?

OpenStudy (jamesj):

between D and E, there is no resistance marked on the circuit.

OpenStudy (jamesj):

If the question was, what's V between B and C, or between B and D, or C and D, etc., then the answer would be difference, because there IS resistance in that part of the circuit. But between D and E, there is none.

OpenStudy (anonymous):

ahh ok thank you.

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