14. In an electrical circuit three incandescent bulbs
A, B and C of rating 40 W, 60 W and 100 W
respectively are connected in parallel to an
electric source. Which of the following is likely
to happen regarding their brightness?
(a) Brightness of all the bulbs will be the same.
(b) Brightness of bulb A will be the maximum.
(c) Brightness of bulb B will be more than that of A.
(d) Brightness of bulb C will be less than that of B.
Answers
Answer:
As the three bulbs are connected in parallel, the voltage applied across them would be the same, lets say its V.
Now, due to the fact that the power dissipated by the three bulbs is different the current flowing through them would be different and thus they will have different brightness.
Now, the brightness of a bulb is directly proportional to the power it uses or the amount of current it draws.
Thus, in this case the brightness of bulb B (60 W) will be more than that of the bulb A (40 W) but less than that of the bulb C (100 W). That is, C has the maximum brightness and the bulb has has the least brightness. Bulb B in between.
Hence, the correct statement is option C.
Explanation:
Hope it helps
Answer:
Answer is option "C" I think not sure.
sorry,
if right pls follow me.
Thank you.