Question

Mr Sam’s hall in his apartment have three bulbs of same power connected in series
And had three Bulbs of same power connected in parallel to the same source in his

dining area. In his study there were three bulbs of different power connected in

series whereas, in the children’s room three bulbs with different Power were

connected in parallel to the same Source .In the below table fill the physical quantity

(V and I) which is same and also the quantity which is different for the 4 rooms

Answer 1

Answer:

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.