Question

Two lamps are connected in series to a 250V power supply. One lamp is rated 240V , 60W and the other is rated 10V ,2.5W. Which statement most accurately describes what happens?

Options given above.
Give reason for each option

Answer 1

$\huge\boxed{Hey\:Mate!!}$

M getting answer option b

If it's not correct...Plzz report it,

I just tried!!

R1 = V1²/P1

= (240×240)/60

= 960 Ω

R2= V2²/P2

R2= 10×10/2.5

R2 = 40Ω

✓✓[ here V1 and v2 is rated voltage]

_____________________________

In series,

V1 =[ R1/(R1+R2) ] × Vs

(Vs = supplied voltage)

V1(consumed) =[ 960/(960+40)]×250

V1= 240 Volt

So, V2(consumed) = (Vs-V1)

V2= (250-240)=10

Now, V1 rated = 240, also consumed V= 240

Similarly V2 rated =10V also consumed V2= 10Volt

So, both lamps light with their normal brightness.

⭐️✔️NOTE:- IF consumed voltage is less then rated voltage , bulb don't glow.

⭐️If consumed voltage is higher then that of rated voltage....Bulb get fused.

⭐️【Here, m getting both consumed voltage and rated voltage equal...So most appropriate answer is option b..I.e both lamps light at their normal brightness】

,☺️

Answer 2

Explanation:

Hi/ho is Ur correct answer

Pls Mark me as Brainliest