Question

Please solve q 14?

Answer 1

The brightness will depend on the current passing through the bulbs.

Therefore the order of brightness is

`(A=E=H) >D>G=F >B=C`

Let the current through `B` and `C` be `=i_1`

and through `D` be `i_2`

Therefore,

`R*i_2=2Ri_1`

`i_2=2i_1`

The current through `A` is `=i_2+i_1=3/2i_2`

The current through `G` and `F` is `=3/4i_2`

Therefore,

`i_A=i_E=i_H`

`i_B=i_c`

`i_F=i_G`