a) What is the potential difference across the R1=11ohms resistor in the if R2=2

Question

a) What is the potential difference across the R1=11ohms resistor in the if R2=24ohms ?

b) What is the potential difference across the R2=24ohms resistor in the figure if R1=11ohms?

Im not sure I quite understand this problem yet. Please show your work i dont just want the answer I want know understand how to solve it as well.

a) What is the potential difference across the R1=11ohms resistor in the if R2=24ohms ? b) What is the potential difference across the R2=24ohms resistor in the figure if R1=11ohms? Im not sure I quite understand this problem yet. Please show your work i dont just want the answer I want know understand how to solve it as well.

Explanation / Answer

since R1 and R2 are in series

Rnet in series = R1+R2 = 11+24 = 35 ohms

so current i = V/R = 15/35 = 0.428 A

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remeber this:

since same current passes throguh various elements in series combination

and

same voltage exixts across various elements in parallel combination
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we get

V across R1 = iR1 = 0.428 * 11 = 4.71 Volts

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V across R2 = iR2 = 0.428* 24 = 10.272 Volts

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