Which of the following is the same in parallel connection of resistances ?
AT Potential difference
(B)
Current
(C)
Both Potential difference and current
(D)
None of these
Answers
Given : parallel connection of resistances
To Find : Which of the following is the same in parallel connection of resistances ?
A Potential difference
(B) Current
(C) Both Potential difference and current
(D) None of these
Solution:
parallel connection of resistances :
Potential difference is the same in parallel connection of resistances
Potential difference = V
Current in Each resistance = V/R
Total Current = Sum of currents in all parallel branches
V/R = V/R₁ + V/R₂ + V/R₃ +. + , + V/Rₙ
Series connection of resistances :
Current is the same in series connection of resistances
Current in Each resistance = I
Potential difference across each R = IR
V = IR₁ + IR₂ + IR₃ +. + , + IRₙ
correct answer is :
Potential difference is the same in parallel connection of resistances
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Answer:
both potential difference and current