Question

Calculate the combined resistance in the given case:

Answer 1

Given: R₁ = 4 Ω

R₂ = 4 Ω

R₃ = 3 Ω

From the given circuit diagram,

`1/R = 1/R_1 + 1/R_2`

`1/R = 1/4 + 1/4`

`1/R = 2/4`

`1/R = 1/2`

R = 2 Ω

Total resistance = R + R₃

Total resistance = 2 + 3

Total resistance = 5 Ω

∴ The combined resistance in the given case is 5 Ω.