Find the resistor in which maximum heat will be produced.

Answer

`4 Omega`

Explanation

In combination of `2,6,5 Omega` heat produce will be maximum in `2 Omega`, while in combination of `5 Omega` and `4Omega` hert produce will be maximum in `4 Omega`
`(H=(V^(2))/R)`

`I_(2 Omega):I_(6 Omega):I_(5 Omega)=1/2:1/6:1/5`
`I_(2 Omega):I_(6 Omega):I_(5 Omega)=15:5:6`
`I_(4 Omega):I_(5 Omega)=5:4`
`I_(2 Omega)=5/26 I,I_(4 Omega)=4/9 I`
`H_(2 Omega)=(5/26 I)^(2)xx2J,H_(4 Omega)=(4/9 I)^(2)xx4 J`
`H_(2 Omega)gtH_(2 Omega)`