Question

Two tungsten lamps `A` and `B` of resistances `R_(1)` and `R_(2)` respectively are connected in a circuit of negligible internal resistance, if `R_(1) gt R_(2)`
(i) The lamp `A` will glow brightly if lamps are connected in series
(ii) the lamb `A` will glow brightly if lamps are connected in parallel
(iii) the lamp `B` will glow brightly if lamps are connected in series.
(iv) the lamb `B` will glow brightly if lamps are connected in parallel
A. (i),(ii)
B. (i),(iv)
C. (i), (iii)
D. (ii),(iii)

Answer 1

Correct Answer - B

`P_(A) = i^(2)R_(1), P_(B) = i^(2)R_(2)`
`R_(1) gt R_(2) implies P_(A) gt P_(B)`
The lamb `A` glows brightly

`P_(A) = V^2//R_(1), P_(B) = V^2//R_2` ltbr .`P_B gt P_A`
The lamp `B` glows brightly.