A piece of wire having a resistance R is cut into five equal parts. If the five parts of the wire are placed in series, What will be ratio of resistance in series to that of parallel?
Answers
Answered by
1
Explanation:
⛦Hᴇʀᴇ Is Yoᴜʀ Aɴsᴡᴇʀ⚑
▬▬▬▬▬▬▬▬▬▬▬▬☟
➧ Resistance of a piece of wire is proportional to its length. A piece of wire has a resistance R. The wire is cut into five equal parts.
➧ Therefore, resistance of each part
➾ R/5
➧ All the five parts are connected in parallel.
∴equivalent resistance (R') is given as
1 / R'
➾ 5 / R + 5 / R + 5 / R + 5 / R + 5
➾ 5 + 5 + 5 + 5 + 5 / R
➾ 1 / R' = 25 / R
➾ R / R' = 25 ...✔
HOPE IT HELPS
Similar questions