Question

Aptly ohm's law to obtain relation for combined resistance when three resistors r1, r2, r3 are connected in series

Answer 1

hey here is  ur answer 
according to ohms law the current flowing in a conductor is direccty proportional to the potential difference apliede across its ends provided the temperature and condition remaoins constant

when r1 is 2 r2 is 3 r3 is 5
rseries =r1+r2+r3
2+3+5=10 ohm

hope it helps plz mark as brainliest

Answer 2

Answer: very simple

Explanation:

Say we have 3 resistors R1, R2, R3. So the total potential difference of resistors in series is equal to sum of potential difference across the individual resistors.

V= V1+V2+V3. --1

By Ohm's law

V=IR. --2

We get ,

V1= IR1

V2=IR2

V3=IR3

FROM first eq.

IR=IR1+IR2+IR3

OR

R- = R1+R2+R3

HERE IS YOUR ANSWER