Question

Two identical resistors of resistance 100 ± 5 ohm are connected parallel. Calculate the

equivalent resistance of the combination.​

Answer 1

Answer:

Explanation:

Given, R=(100±5)Ω

In parallel combination

1R.=1R+1R=2R

or △R.(R.)2=2△RR2

△R.=(R.)2×2×△R(R)2

⇒△R.=(R2)2×2△R(R)2

⇒△R.=(1002)2×2×5(100)2

⇒△R.=2.5

R.=1002±2.5

⇒R.=(50±2.5) ohm.