Question

If the three bulbs of same power are connected in series and the same bulbs are
connected in parallel to the same source .In which case the bulbs will glow with more
brightness? Justify your answer.

PLS ANSWER FAST !!!!
PLS GIVE PROPER ANSWER (2-3marks)

Answer 1

Answer:

Let us assume that resistance of each bulb is R

Case(1)

Current in each bulb =

3R

V

case (2)

Net current =

R

3V

Current will get equally divided in three bulbs =

3

I

=

R

V

Bulbs in case (2) will glow with great brightness current ∝ Brightness

B) Now I one bulb gets fused, in case (9) rest of bulbs will not glow because in series voltage eruption in one appliance will affect other appliances.

But in case (b) all other bulbs will glow as voltage eruption in one bulb does not affect the voltage of other bulbs.