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April 19, 2014

Homework Help: physics

Posted by susane (recheck thxs) on Thursday, March 15, 2007 at 8:08pm.

Four 20 ohm resistors are connected in series and the combination is connected to a 20V emf device. The potential difference across any one of the resistors is:
A) 1 V
B) 4 V
C) 5 V
D) 20V
E) 80 V

So there are four resistors that are 20 ohms. Their connected to a 20 V device. The question wants to known volts. Its says for a parallel circuit. I just divided 20V/4 and got 5V.Is that ok to think of it that way?

correct on the first. However, if the second circuit is parallel, each resistor has 20V across it.

The second circuit is in series.

Thank you


correct.

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