Question

Two resistors 10 Ω and 5 Ω are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ω resistor?

5 V

10 V

15 V

20 V

Answer 1

You first need to draw the circuit - just a battery and 2 resistors.

Make sure you put the resistors in parallel

Answer 2

then what? @MrNood

Answer 3

You can solve this problem if you understand the characteristics of parallel circuits.

In a parallel circuit, the electric potential difference has to be the same across each part. The drop in potential will be the same through each resistor. You know the potential difference of the source, so see if you can figure this out from here, with the help I've given you.

Answer 4

so 10v? @ghuczek

Answer 5

No. It has to be the same as the potential difference of the battery.

Answer 6

would it be 15? @ghuczek

Answer 7

Yes. That is correct.

Answer 8

thanks! @ghuczek

Answer 9

However - if you had drawn the circuit FOR YOURSELF before the answer was given to you it may become more evident WHY the answer is 15.

Have you got any further understanding of parallel resistance through having your question answered here?