Question

two bulbs of rating 50W , 100v and 100w and 50v are connected to a source of 200v in series then find which bulb glow more by solving.​

Answer 1

Explanation:

$\huge\boxed{ \color{yellow} \mathcal{ \colorbox{gray}{GIVEN :-}}}$

$\implies\textit{ \: power \: of \: bulb }\: \textit{{1}}^{st} = 50 \: watt$

$\implies\textit{ \: power \: of \: bulb }\: \textit{{2}}^{nd} = 100 \: watt$

$\implies\textit{ \: potential \: diference \: of\: bulb }\: \textit{{1}}^{st} = 100\: volts$

$\implies\textit{ \: potential \: diference \: of\: bulb }\: \textit{{2}}^{nd} = 50\: volts$

$\bold{For \: bulb \: first,}$

$\boxed{Power = VI}$

$50 = 100 \times I$

$I = \frac{50}{100}$

$I = 0.5 \: ampere$

$\bold{For \: bulb \: second,}$

$\boxed{Power = VI}$

$100 = 50 \times \: I$

$I = \frac{100}{50}$

$\boxed{I = 2 \: amperes}$

From the above calculation second bulb will glow more.