For ensuring dissipation of same energy ...

For ensuring dissipation of same energy in all three resistors `(R_(1), R_(2), R_(3))` connected as shown in figure, their values must be related s

`R_1=R_2=R_3`

`R_2=R_3 and R_1=4R_2`

`R_2=R_3 and R_1=R_2//4`

`R_1=R_2+R_3`

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